Re: automatic accidental style voice: too many written accidentals

[Trevor Daniels]

Frédéric Bron wrote Sunday, October 25, 2009 6:45 PM
> Here is my first post:
>
> In voice style, when switching from one voice to two voices, the
> program writes too much accidentals.
> This example demonstrates the problem (2.12.2 and 2.13.6): the 
> second
> bes should not have a written flat.
>
> \relative c'' {
>       #(set-accidental-style 'voice)
>       \key f \major
>       bes1
>       << { bes } \\ { g } >>
> }

This is not a bug.  The two voices in the <<  \\  >> construct are
distinct from the main voice.  This is explained in the Learning
Manual in section 3.2.1.   You have requested accidentals
to be cancelled only within a voice, and the second bes is in
a different voice to the first bes, so it should be given an 
accidental.
The default accidental style will behave as you expect as this
cancels accidentals for all voices within a staff.

That probably explains why it wasn't added to the bug tracker
the first time around.

Trevor