Tuning fixes

[Graham Breed]

I've found and patched two problems with the pitch bend
tuning code:

1) The pitch isn't always rounded to the nearest equally
tempered value, so the result looks strange in a sequencer,
and artifacts caused by the pitch bends are more severe.

2) The tuning is rounded to cents before the pitch bends
are calculated.  It may not be a big deal, but there's no
need for it, and the code's simpler calculating the bends
directly.

I don't think either of these are registered issues.  As
I'm new with Git, the two issues are mixed in the two
patches.  Problem (1) is fixed in get_semitone_pitch().
It's just a question of rounding off the result.
Everything else is for problem (2).


                      Graham

0001-Pitch-bends-of-full-precision-centered-on-zero.patch
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0002-Small-pitch-bends-correct-and-tested.patch
Description: Text Data