Re: Issue 1711 in lilypond: Pitch bend tuning adjustments

[lilypond]

Comment #1 on issue 1711 by address@hidden: Pitch bend tuning  
adjustments
http://code.google.com/p/lilypond/issues/detail?id=1711

To demonstrate what Graham's patch improves, here is file that uses  
Pythagorean tuning to play c f g.  Current LilyPond outputs a midi file  
containing c e g where the e is sharpened to a pythagorean-tuned f (a  
perfect 4:3 fourth above c).  One would need a midi reader to see this  
change.

In order to hear the change, I broke the rules and held the c.  (Midi pitch  
bend does not support simultaneous notes with different bends in the same  
channel; so to get proper output I should have separate channels for each  
voice.)

We can hear the excessive pitch bend on the held c, and expect the held  
pitch to bend much less after the patch.

Attachments:
        Simple_pythagorean.ly  463 bytes
        Simple_pythagorean.unfixed.midi  182 bytes
        Simple_pythagorean.fixed.midi  182 bytes
        Simple_pythagorean.png  7.5 KB