I've been looking over the chart for English concertina fingering as given here:
The first chart, English Concertina Keyboard -- http://www.concertina.com/fingering/images/english48-W842H736.gif
has me wondering why it's shown as starting an octave above Middle C. This isn't 'wrong' but I can't figure out if it's actually 'correct' and I would in fact be somehow wrong to show the chart with the lowest C being notated with a capital C, not the small c.
So, I would have started with the low G being lower, notated as G, -- then continue up going G#, Ab, Bb, B, C -- etc ---
simply an octave lower than it's given on the chart.
Sound-wise, the chart is more correct, maybe? But as far as what I'd want to read or write on the musical staff, I think I'd want to go with the lower octave start.
Am I missing something...?