Hi,
I've found a very interesting application, Improvisor
*Impro-Visor* (short for “Improvisation Advisor”) is a music notation
program designed to help jazz musicians compose and hear solos similar
to ones that might be improvised. The objective is to improve
understanding of solo construction and tune chord changes. There are
other, secondary, things it can do, such as improvise on its own. It
has also been used for transcription. Because rhythm-section (e.g.
piano, bass, drums) accompaniment is automatically generated from
chords, Impro-Visor can be used as a play-along device. Now having a
wider array of accompaniment styles
<http://www.cs.hmc.edu/%7Ekeller/jazz/improvisor/Styles.htm>, its use
is not limited to jazz. Distributed with Impro-Visor is "The Imaginary
Book
<http://www.cs.hmc.edu/%7Ekeller/jazz/improvisor/ImaginaryBookIndex.html>",
a chords-only fakebook with chord progressions to about 2500 tunes.
http://www.cs.hmc.edu/~keller/jazz/improvisor/
Afaik it's GPL software and that makes me dreaming about having
Lilypond functionality in it... It has an midi export function, so
maybe the midi can be converted to lilypond?
Are people here working with this application?