@join Thanks for your reply. An updated fingering would be great! I have included a chart below that represents what I personally think I would like to have for whistle fingerings -- I will also run this past someone more skilled than I and let you know if any modifications are suggested.
With regard to fingering:
- Yes, left pinky should sharpen and right should flatten
- Yes, removing the thumb should go to upper octave
- Well-behaved tin whistles have a third octave, in which they can generally only go up to E. This could be represented putting the thumb on the upper octave pad.
- At the moment you can play a high D with or without the thumb down. This is very good, please keep it!
- C on a whistle is played with L2 and L3 fingers down, but allowing a fingering with only L2 down wouldn't do any harm and might be interesting for people used to sax or pipe fingerings.
Other comments about whistles:
--Most accidentals are played with half-holing; the cross-fingerings vary from person to person and from whistle to whistle so you will find many opinions and no single truth! The sharp and flat pinky pads should do fine for many players but I have suggested cross-fingerings in the chart below.
--Tin whistle players are not generally used to using their thumbs at all -- if there were a system to handle overblowing to change octave, that would be very interesting. I imagine it's hard to implement. Perhaps it can be done in software.
--Tin whistles are a transposing instrument, in which six fingers down is always written as the D above middle C, even on my meter-long low A whistle! Therefore in the fingering chart I have started from D.
With regard to half-holing, I will practise!