Re: Bass inversion

[Richard Shann]

On Mon, 2019-10-28 at 17:03 +0000, Joe Wilkinson wrote:
> Hi Richard,
> 
> If, in a Chord Staff, I have a bass inversion set on a chord, and
> then 
> use Notes Transpose to arbitrarily transpose the chord, the notes 
> transpose but the bass inversion doesn't.
> 
> Staff Transpose on Print however does transpose Chord names and Bass 
> inversion correctly.
That's because the "on Print" bit in the command name means you are
asking LilyPond to transpose, and LilyPond understands what the syntax
means.

> 
> Would it be difficult to get Notes Transpose to act on the bass
> inversion?

You would have to test if a bass inversion was set on a note - the
command

(d-DirectiveGet-note-data "AddBassInversion")

would return #f if it wasn't or would return the bass note if it was.
And if it was you would have to transpose it. You would be doing this
within the script that did the transposition of the notes.

(Here I'm guessing that by "Notes Transpose" you mean a command from
the Notes->Transpose Music submenu... as usual with these "real"
transpose commands the question would arise, why enter it and then
alter it rather than entering it already transposed?)

Richard