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Isel

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About Isel

  • Rank
    Advanced Member

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  • Gender
    Male
  • Interests
    FidleuilleannTinaguitar
    Figuringoutshorttales
    Givinghandcraftpresents
    OfcourseAnabelJuanVic
  • Location
    Mazagón (Southern Spain)

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  1. The idea of the strap covering the entire hand is not new, of course. It can be found in Cnet some pictures (after Mike, @ragtimer) of the called "Bastari Hayden bandoneon", which strap is designed to accommodate the entire hand.
  2. Hi @DougS. I actually do not use my thumb for playing yet. As you say, in Stagi Hayden it is ( for me) impossible without putting the entire hand into the strap. The combined strap system I am thinking about, besides the design of thumb and hand plates, could allow me to play at least a coup of bass notes in right side in a "drone" style as example. In the left hand, probably some utility for the thumb could be also encountered after practising.
  3. Ah Alex!......probably the "banana-shaped" suggestion for the handrest that you made could have had its reflect in this design at some extent 😁
  4. Initially, the single bolts in both bloks have the only aim of allowing me to move them easily, looking for their best location (I can move them in all directions, and fix them at the desired location). At final, I think both blocks should be fixed (or not?...uhhhmm!). The thumb plate is parallel to the keyboard. But yesterday I incidentally discovered that swivelling the pinkie block to that angle does not constrain hand movement, but the curved design of the block allows an additional nice point of contact of the block with the base of the hand (if desired, by example: I think this additional contact could aid to control the instrument whiles playing stand up). I have noticed I only would need a 3 cm wide pinkie block .... the additional lengh of the block (up to 6 cm) had aestethic purpose...But placing it at an angle lead the entire lengh of the block to have an utility! (if desired, because whiles playing sitted my han would rest nearly exclusively on both thumb and the pinkie margin of the palm). And yes, both the thumb and hand straps are adjustable. The thumb strap adjust (a few mm margin to adjust is enough) can be done by placing a little rounded pin or hook in the righ side (even create them directly from the wood block....). This would, in addition, allow the right thumb strap clamp to swivel. Uhm..No Alex, I think that angle metal plate would be an obstacle to the thumb movements. This integrated thumb-hand strap system is nicely confortable to me, and seems to allow a lot of hand freedom with a lot of control at same time (the "black" bracket that links both straps is not only cosmetic) ☺️
  5. Of course Erik!. I am very grateful to everyone that have participated
  6. In my prototype the hand strap also would remain loose enough to move the hand either up/down or swivelling. But in this context I have found a soft thumb loop would greatly improve the bellows control with scarce affection on hand freedom. Incidentally, I have discovered this system allows to loose the hand strap to the extend you want (well, within a secure margin, of course) because you can easily use the thumb to adjust the entire tension of the system, by spreading laterally the thumb.
  7. Very good example John!. And, indeed, Aaron Marcus slides his hand and also rotate it a litle bit to play two octave buttons simoultaneously (the index finger pressing the lower button). Apart from reaching outer buttons, my initial question was focused to allow the hand to swivell in both directions at some degree. At least for me, it is more challenging to try two octave buttons at time whith the index finger pressing the higher button... With the standard hand strap design, when I try this fingering, my thumb finger does find an obstacle against the point where the strap clamps to the handrail, so I can not rotate my hand in enough degree to reach the desired finger positioning. The "integrated" hand-thumb strap proposal that I am experimenting with allows for this fingering and, due to my hand width, my feeling is as I had my hand "in a glove". Recently @Łukasz Martynowicz showed me a video from @tona , and he seems to have (at least in the right side) both hand and thumb straps in his duet (the hand strap being clamped to the sides of the concertina, instead to the ends of the hand rail).
  8. I also use the air button this way.
  9. An interesting observation Alex🧐!
  10. Effectively!. I have same doubt. ...so... @alex_holden... would not appear necessary/suitable an air button in this case of having bisonoric?🤣
  11. forgive me this time inventor, but I am bit intrigued by the motivation for having bisonoric buttons in a 69 Hayden.
  12. Thank you very much for your detailed and very interesting reply Inventor!😊 This makes sense if I was focused to spanish folk, as tonalities that dominate (conditioned by the pipes in the north, and the "dulzaina" in central Spain) are mostly C, Bb and F. Even actually I don't play so much these, perhaps in the future I would do. Interestingly, I thought about this key before the low Eb. @David Barnert suggested that addition and I would find usefull to have this key instead D#. Re bisonoric: Do you refer to difficulties in order to properly include these keys whiles playing?
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