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Łukasz Martynowicz

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Everything posted by Łukasz Martynowicz

  1. For me, normal handrest is even too small and I need higher/different setup. When playing with too low or no handrest at all my wrists are in constant flex, finger movement is more stiff and this causes fatigue and may lead to injury. One further note: each concertina type (including each duet system separately) has different "wrist pivot point". On 20b anglo there is almost no need for wrist movement, e.g. on English you have a pivot point above the wrist (which also enables a linear wrist movement to some degree), and on a (large) Hayden you ideally should have two degrees of freedom, as you should be able to move your hand back and forth and up and down without changing the angle.
  2. There are some recent discussions about the very same question, so please take a look at those two threads: http://www.concertina.net/forums/index.php?showtopic=17515&hl= http://www.concertina.net/forums/index.php?showtopic=17510&hl=
  3. If you want a simple look-up-table, without any real time calculations, then I think that your proposed values are way too small. MIDI volume has 0-127 range, so my first thought was to use 128 step look-up-tables (first map the raw pressure reading onto 0-127 integer and then read the appropriate cell in the table for getting the output level). This is fast, plain and simple, but you get some fidelity issues with such approach: with lowest sounding pressures and steep curves there is a high gain between neigbouring table values, resulting in a slight buzz at the start/end of a bellows movement and you get a lot less distinctive MIDI volume levels than 128. With even smaller look-up-table, this problem would be huge. If available memory is not an issue, I would now map the full range pressure reading onto the curve first (1024 levels or as many as you get from the sensor) and then "squeeze" just the final output onto 0-127 integer. This should smooth the result and give you the actual 128 distinctive MIDI volume levels. But if you have a lot of computing power at your disposal direct computation in real time may be a more logical option.
  4. Maybe the less confusing word than "interweaving" to describe the EC will be, that it is more "mono" than "stereo"?
  5. I'd doubt that! The "perception" of "black & white" will be rather generated through personal experience than "having" absolute pitch IMO. All the more lacking that absolute pitch the experienced keyboard player will "perceive" a given melody in one of the people's keys, i.e. in "black & white", avoiding to many "black" notes. At least this is true for myself, a major melody will most likley occur in Cmaj or Gmaj, regardless its "real" pitch... There are many variations in the way individuals perceive things, and sound is one of those things. Unfortunately, it's also common for persons to assume that somehow their own way of perceiving things is not only "natural", but almost universally so, and that any differences are both anomalous and rare. I admit, that I should phrase that statement differently (I often do this "direct translation" from polish, which often leads to improper reception, that something I write is "undoubtfull and universal truth"). What I meant was that someone without absolute pitch will not be able tell which notes of the tune he hears are "black" and which are "white". Assuming some musical training, he will hear though, which notes are accidentals (in meaning that they do not belong to the given diatonic key), but will not hear their button colour. I didn't meant that those are the only variants of percieving music, only that hearing "note colour" is one of the aspects which differentiate listeners. [i have some strange problems with proper quoting of previous posts, so I have to go with "manual" quoting from this point] @ Jim: "And I know a person who has "perfect" pitch but no "relative" pitch. I.e., if he learns (or reads) a song in a certain key and then wants to sing it in another key, he can't just move the starting note and then shift everything else by "feeling" the intervals, but he has to mentally transpose each note before he sings it. If you give him a guitar, piano, or concertina that's more than a half step out of tune, he can't play it, because what he hears is not what his fingers are "playing"." This would be the most radical ilustration of hearing "black and white music" from my previous post. But I didn't knew that such separation of absolute and relative pitches can even occur. I always thought, that absolute pitch was something like a "permanent anchor" for relative pitch. And I think it would be quite interesting to know, what this particular person thinks about isomorphic keyboards, how does he "feel" them and if he finds them intuitive/usefull or an even more complication. Having a narrowed spectrum of hearing has nothing to do with what I wrote. To differentiate: inside the scope of ones hearing range you are either "musically aware" and can hear either relative or absolute pitch of notes (or both) and can name the notes (in an absolute or relative way) or at least tell which of two given notes is higher, or you are what you call "tone deaf" - you hear the sound but you cannot make any distinction of its relative or absolute pitch. Some of those capabilities can be learned/trained/shaped to any "music description language" and with some you are simply born with. One of the strangest case of percieving of music I have encountered in my life is one person I know, who doesn't like to listen to any kind of music, because she has absolutely no musical memory. Each tune or song is always completely new to her, and because she cannot anticipate any "incoming" note or phrase, listening to music is one of the most annoying things for her.
  6. So probably another hint may proove helpfull: it is usefull to have a few different pressure-to-volume curves to choose from, depending on the sample used at a particular moment, style of play, and whether it is volume or velocity you controll - especially if you intend to comercialize your design. I have 4 different curves and I use all four of them (but some more than others).
  7. This leads to an interesting distinction between listneners in general: if you don't have absolute pitch you percieve only those distances and they are the "fabric" of music for you; however if you have absloute pitch then you indeed percieve "black and white" coloured music (if you care for piano-oriented music language). But in both cases, it is relative "distance" between notes that makes the melody, while "button colour" is a cultural construct - an artificial language, no matter how popular. And this "language matter" was the point of my previous comment: Hayden layout (and any other isomorphic layout for that matter) may teach you a different, geometry based language to describe music, if only you're not particulary attached or fluent in a piano&staff "common language". As another example: lately there was a thread about new MIDI instrument, which has two spiral inputs - such spiral (and even better a conical-spiral) three dimensional representation of music is IMHO far more natural than linear piano representation. True. I find traditional staff notation very obscure and favor Parncutt 6-6 tetragram over it, as for me it's more intuitive and straightforward to read http://musicnotation.org/system/6-6-tetragram-by-richard-parncutt/ - mostly because it shares the same "key independence" (in form of consistent geometric shapes of all intervals and chords. The notation itself has a very clever way of representing black and white piano keys "built in", but this is again a "cultural overlay" as this is simply a semitone notation with clever position of ledger lines). And the concept of marking the key of a tune and distinctive sharp/flat notes can be reintroduced into this notation via what I like to call "opposite" flat/sharp signs - instead of marking that the pitch of the note should be lowered/risen while playing, it can be marked that this particular note has been lowered/risen to the noted pitch while composing (for non-equal temperament use, microtonal instruments and other practical reasons in which there should be distinction between flats and sharps). In fact I had couple of attempts to learning music theory in my life, and I could not make any logic from standard piano&staff language. I have percieved it as requiring heavy memorisation of quite arbitrary rules which made very little logical sense for me. It was only when I found Wicki-Hayden layout (and later other isomorphic arrays like various CBA systems) and started to orient my understanding of music around isomorphism, when I made it past the point of simple melodies to the world of harmony and all other aspects of music theory. [i think that it should be noted here, that a carefully chosen slant of a Wicki-Hayden keyboard makes it possible to "overlay" the traditional staff notation directly to the keyboard - if you were to move a line parallel to the hand rest over such slanted buttons, they will cross such line in a chromatic order. But this concept is not (at least not for me] all that usefull in real practice] Something else entirely This may be suprising to you, but when playing in E minor I position my hand as in playing in C major (index finger on C), but start a scale with my ring finger instead of an index finger. On a Hayden a major scale has a shape of 4-3 buttons (4-3-4-3… when repeated through octaves), while a minor scale has a shape of a 2-3-2 buttons, which when repeated in more than one octave fits into the same 4-3-4-3 shape as the major scale and it is most logical to place your hand in a way that enables you to play a 4 button row with 4 different fingers. I could not position my hand as in playing in E major and "reach in different directions", as E major is located over entirely different part of the button array. And I realy don't treat intervals of e.g. major third an minor third as closely related: they are completely different vectors on a keyboard, used in different contexts and for different purposes, and I would even say that I treat them more like "opposites" than "neighbours". Again - Hayden keyboard is more geometric than arythmetic and gives you a completely different view on harmony and note relations. This leads to another fundamental difference between the Hayden layout and the piano (or in fact many of the other isomorphic layouts): different keys and modes of the scale you're playing in does not matter in regards to fingering, however the scale you're playing do matter a lot in regards to practical playability. On a piano each scale, key or mode is just a bit different pick from the straight line of 12 buttons. But on a Hayden, each scale is a completely different thing. For example, it is very difficult to play a gypsy/klezmer scale on a Hayden as it consists of notes scattered "all over the place". It is doable, but much harder than a major/minor scale.
  8. Of course, the whole point of the Hayden is that you shouldn't have to worry about which notes happen to be white or black, just how the notes relate to the key you're playing in. Two different concepts, each making sense in its own right I'd guess... This is something I have the hardest time explaining to someone, who have never heard of/tried a Hayden layout and/or learned to play on a piano - that Hayden layout (and in fact any other isomorphic layout like 5 row CBA systems or Harmonic Table layout) is completely transparent in regards to note names. You realy don't have any reason (at least any related to playing on this layout) to think in terms of white keys, black keys, accidentals, key you're playing in etc - only plain intervals matter (which you even don't have to count, as they are geometry-based), so the whole percieving of music theory becomes quite different than on any other instrument or layout I have encountered. [This comment is in no way intended to impress anyone that Hayden layout is utterly superior to everything else, but simply to point out how much different it is on a conceptual level. It has been discussed extensively in various previous threads, that isomorphism may be a curse in certain situations, as there is no "escape" from awkward or difficult fingerings by transposing a tune to a different key; or that separation of accidentals from "base" notes is a concept that does not suit everyone and may be considered a huge drawback for someone comfortable with piano keyboard]
  9. But this added degree of freedom with recording while using single mic can be used to your advantage - it can act as a "virtual baffle" or with two mic recording you can manipulate the ballance later in DAW, or create DUB effect [There is a music genre caled DUB which relies heavily on spatial "soundscape" effects] I once had a quite frustrating problem with finding piano music recordings done from the perspective of a player (large high-low stereo separation) and not the audience (pianos are usually placed sideways to the audience to reduce the separation), as is the case with most piano recordings. And If I'm thinking correctly, the EC players often move the concertina around while playing to "restore" some of that stereo spatial effects that other concertinas or accordions have? This is the layout of the DIY Hayden I'm building. My goal was to be able to play accordion or piano pieces with least "cropping" or octave switching in bass runs necessary, hence the huge overlap and range going down to F on both sides. And I don't mind transposing the more exotic keys, as I'll mostly play solo, so only Eb's are doubled (which will be done by links and not doubled reeds). @Steven: most of the limitations you point out come from Peacock being a small duet - with it's 42 buttons it is less than "standard" 46 button Hayden layout. This was my largest disapointment when it was released, as I hoped for a moderate priced, "full standard" hybrid box. I think that you'll find yourself considerably less constrained by a Beaumont and even less by Wakker H2 and least by an old square Bastari, with it's range and all those repeated accidentals.
  10. IMHO the duet system that might be closest to piano experience is Tona's Dipper Custom: https://www.youtube.com/watch?v=_MYPTWxpKp0, but you should ask Tona directly about such comparison. If I recall correctly this is one of CBA layouts fit on a concertina and is next closest to "two row" piano after Jedcertina. But IMHO Jedcertina this big (button number wise) would be completely unplayable, large and would require a wrist band like the left hand CBA keyboard to be able to freely move your wrist. Even Tona's box has a very elongated button array.
  11. I will repeat myself, but since you have printed those different layouts and are trying to do something useful with them, you should try them on the actual box - i.e. on the sides of a cube, to see which layout orientation is most ergonomical for your fingers. Flat printouts can mislead heavily on which layout would be easiest to play when you have a handstrap around your palm and must reach outside or closest/furthest buttons. I have used my MIDI Hayden in flat keyboard arrangement, and I can do very different things with it than on the actual concertina.
  12. With large enough duets adapting the keyboard music to contertinas is quite straightforward realy, but there is a "finger limit" factor to consider - you can only use 8 fingers on a concertina, while 10 on a keyboard. And with each duet system you get different constraints on using a single finger to play several notes at once (on a Hayden you can play fourths and fifths with single finger (but each is easy to play only on one side of the instrument) and 1-4(or 5)-8 triads).
  13. You have misunderstood me What I meant is that having a bellows driven MIDI dynamics you can use it either as a volume dynamics or velocity dynamics. Volume dynamics is essential to achieving natural sound with all free-reed samples, bowed string instruments, woodwinds, brass etc… But it sounds strange an unnatural with plucked string samples, piano and percussive instruments (both xylophone-like chromatic percussive instruments and drum kits). And it is just a flip of a switch away when you have bellows driven, pressure dynamic sensor, which you can easily connect as either option, so why not have both in the same instrument? And my "simple MIDI volume" suggestion was only reffering to your own statement, that at this point the synthesiser software you're using does not recognize channel pressure control and your video lacks any dynamics at this point.
  14. I had similiar problem to your's when I wanted to switch from Anglo to something chromatic and unisonoric. I have finally landed with Elise and don't regret (it is true that you'll run out of buttons quite fast, but it is a quite versatile box, especially in regards to harmony building and linking it with independent melody, and you have a Peacock upgrade path available now). But as Wolf said, you should try all different instruments prior to making choice. And if it is not possible you might consider making "dummies" to try: just take a "concertina sized" cardboard box, stick some pins in it to fake buttons in different layouts and try to "mind play" something. I have ruled out English concertina this way, because it had too awkward ergonomics for my long fingers and interleaved sides were completely unnatural for me (and this indeed have saved me money (or time) and frustration, as I was seriously considering buing Jack instead of Elise back then…)
  15. I had an anglo opition in my DIY MIDI Hayden. Back then, I was just switching from an anglo playing and missed the "bouncing joy" of playing bisonoric instrument. It was fun to fiddle around, so I also did have some sort of a "hayglo" - a bisonoric Hayden layout that automaticaly transposed a whole tone up or down (or a semitone for a sake of experiment) depending on bellows direction. With a Hayden keyboard and a programmable bisonoric capable instrument, you can do all sorts of fun things. But I never had explored those variants deeper than a couple of shanties, as I was quickly and deeply drawn into Hayden logic and have abandoned anglo entirely. One suggestion for you, conzertino - you should program the option to connect bellows pressure sensor reading to channel pressure OR note velocity. This way you will benefit greatly in regards to piano-like or plucked string, velocity driven samples. And if your tablet software does not recognize channel pressure you might link the bellows pressure to simple MIDI volume. Any dynamics is way better than no dynamics at all.
  16. Same as Matthew, I have an Jackie's "sister" Elise, and it is sadly true, that those instruments aren't realy made for gentle, quiet play. My wife also complained a lot when I first started to learn anything on this box and was making a LOT of mistakes over and over again But fortunately there is an easy, "non destructive" way to "turn down the volume" on those instruments. Buy a sheet of an EVA foam, press it on the fretwork to mark the shape, cut out and fill the holes in the fretwork (you have to cut rougly, so there is some air leakage around those foam inserts, but they still hold in place). This way you can cut about 20dB, so neither yours or your girlfriend's ears won't hurt that much after your practice This solution is very convenient, as you can take out the foam inserts easily if you need to e.g. play in a loud enviroment or for a bunch of singing people and put them back for solo practice.
  17. Of course it would be ideal to have an array of buttons like my entire hexagonal grid (including gray areas of duplicated buttons) - just like 5 row CBAs do have - so you won't have to transpose. But I wouldn't demonize the "stretch" when playing on a Hayden - I have trained playing all sorts of "edge chords" on my 64b MIDI and this is not harder than making long jumps on Stradella bass system (but I have long fingers which may play a role in this opinion). In fact this "stretch" is in some cases easier and more natural than jump your entire hand across the keyboard back and forth. And as you have stated, those "stretches" or jumps are quite inevitable in less diatonic music - even with large button array you either stretch some chords or you have to jump across the keyboard for a single chord or note (which may be more comfortable when isolated, but may require more awkward wrist movement when actualy playing something). It is the very nature of a quite stretched octave on a Hayden and adding a single repetition of duplicates does not eliminate the problem entirely, you still have to use those awkward fingerings sometimes, so why bother making larger array if you still have to learn those fingerings? IMHO it might even cripple your ability to play fluently, as you will use those edge fingerings less frequently and in turn won't have them inprinted in your muscle memory that well… And with larger button arrays you begin to have wrist movement restriction and finger reach problems (this is why I'll have completely different handstraps on my DIY acoustic box) And I'm not sure if you have understood fully what I had in mind by transposing "on the fly", as (as far as I'm aware) you have limited experience with isomorphic layouts. On an "unlimited Hayden array" there is no difference between playing in different keys other than actual pitch produced. And because of that, playing on a Hayden is purely about geometric shapes of intervals, both in melodic and harmonic context. So if you "erase button labels" (as is possible with MIDI), you can play in every key with the exact same, most comfortable fingering. You don't make any "unnecessary extra work to transpose a piece" - you just play it with different button labels, the geometry stays exactly the same and with MIDI transposition capabilities you'll most likely always move the root note to most comfortable position (this may be different for major and minor keys and may depend on occurrences of accidentals in a tune). This is why I think that teaching to play on a Hayden in a manner "this is C note, this is A note" is wrong - instead it should be learnt like "this is root note, this is major second, this is the scale shape, this is a major chord shape" - especially on a transposable MIDI instrument. And one more word about "advantage of marked buttons" - if the markings are logical, you are simply NEVER lost, because you either feel the marking with one of the fingers and know where you are or you don't feel the marking and because of this you know where you are. This is of course true only if ones style of play does not rely on hovering fingers above buttons when they don't play a note, but usually rest on silent buttons. Finding a position using array edges is IMHO sufficient enough only for smaller Hayden keyboards, when you are usually no further than a single button away from proper position or an edge.
  18. Here you have a standard 46 layout (in red-ish color) with Bob Tedrow's additions (in violet-ish color). Notes in circles are what I would add for the sake of continuity of chromatic range and symmetry between hands (I like to play in octaves or to have full freedom of accompaniment in a given range and I play a lot in minor keys, hence the low Bb for keyboard geometry reasons). On a MIDI I see no point realy to double accidentals, other than Matthew's microtonal reasons. You can (and probably will) always transpose your keyboard for keys with a lot of sharps and flats, so that the key you play in is in the center of the button array. And from my experience you'll only realy need a semitone transposition, as on a Hayden this switches outside keys with inner keys and is sufficient, as you are probably used to whole tone transpositions by hand placement. As a sidenote, I don't realy think that "getting lost" on a keyboard is problematic at all if you have some sort of a reference point, be it marked (domed or flatted) buttons for F and B or A notes, or a thumbstrap. It is a bit more likely on a Hayden than on a Wicki, due to slant, but I had no problems at all on my 64button MIDI.
  19. That's why I said "after first few cycles". From what I understood, Tom has explicitly stated, that he has no idea (at least he don't have a definitive description) on how the tongue start it's movement, and in my post above I have only pointed out, that initial movement and steady oscilation phase are different enough to be treated as separate problems, and that the latter is quite well researched and that Tom's description and math can be used in practical aplications of reed and instrument design. My opinion on the very first cycles is that even slightest (both spatial and temporal) effects matter and that they accumulate over first few cycles, so no "single first cycle" description of the reed start can ever be complete nor true. And yes, I think that some of those effects cause the momentary effective pressure difference acting on the tongue to be greater than P1-P2 (or at least that the whole "macro scale" P1-P2 approach is somehow fundamentaly inadequate in those very first cycles, as it results only in a "pressure valve", single airflow cut predictions), but at this point I have no more ideas on what they might be. I also think, that the most important observation about first cycles is that the entire oscilation starts with amplitudes smaller than the gap width and that the first few cycles never even reach the shoe, so there is no complete airflow cut-off during this first stage. Then comes Dana's "abrupt amplification" phase (this is IMHO the point in which first tongue sinking into the shoe occurs) and then we have the steady oscilation phase, in which Tom's math works as described by him. (to be more precise, I think that Tom's approach is also at least partially true in the "abrupt amplification" phase, as this is the transitional phase in which both "initial" and "steady" parts of the description should overlap). And I also think, that without high-speed, smoke flow footage of the first cycles we cannot give any true and definitive answers to how the reed starts. Unfortunately I don't have such capabilities. [sidenote: I was wondering recently, if Schlieren photography could be of any use in resolving the first cycles movement question… https://www.youtube.com/watch?v=lSFwH0BVd3Q]
  20. This was originally linked by Tom in a "MIDI latency" thread, but I think it should be linked here as well. http://www.public.co...g/PMA035061.pdf There is quite solid proof in this paper, that initial conditions in transient stage are very different from those in a steady oscilation phase and therefore a steady oscilation phase can have a completely separate description (which is in fact quite well researched and used in practice of reed/instrument construction). The missing "initial movement" problem does not in any way invalidate all other findings on the free reed behaviour that have been published and I personally don't have any objections to Tom's description of physics after the first few cycles (more precisely after Dana's "abrupt amplification" phase).
  21. Just to confuse this thread a bit more, my latest accidental finding (rather unsuprising, but still interesting). I was testing my new reedpan yesterday and have tried a couple of accordion reeds on it. They are still unvalved, so when I have applied pressure, BOTH tongues of the accordion reed have spoken simultanously. In such conditions both tongues have smaller amplitude, the combined pitch is much more pressure dependant (note bends very easily, it is quite difficult to achieve a steady note) and the "reverse direction tongue" oscilates with small amplitude only (so it does not sink into the shoe), but it vibrates nevertheless. This "double reed" setting is much more sensitive to overall pressure and behaves very nice around a bellows reverse point giving almost uninterrupted sound [it starts to speak with very low pressures and cannot be chocked with sudden, high pressure push on the bellows. When one of the tongues was valved (with a masking tape) the same reed was very prone to choking with sudden bellows movement] This finding got me wondering if such effect could be usefull for some kind of "another type", new concertina… Probably somehow electric in nature as this setup has significantly lower volume (and is very air inefficient) and would require some sort of a "second step amplification", but almost continuous sound and note bending capabilities could prove musically usefull...
  22. Then it is probably a rhetorical question if you know Korpiklaani? https://www.youtube.com/watch?v=cvbsrD3gDwo
  23. Nice work! I would like to hear this in a full metal band arrangement, along with drums, guitars and vocals
  24. I use a large moleskine - it is very durable and large enough to actualy note something useful. With this larger version I can fit both ABCs and lyrics on the same page (or on the same spread) and actualy read the lyrics while I play.
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