VocalEasel is a program to edit for vocal jazz lead sheets and generate and play accompaniments. It is designed to be:
VocalEasel was written and designed by Matthias Neeracher <neeracher@mac.com>
For producing printable lead sheets, VocalEasel relies on the LilyPond system written by Han-Wen Nienhuys <hanwen@xs4all.nl>, Jan Nieuwenhuizen <janneke@gnu.org>, and others.
For producing MIDI accompaniments, VocalEasel relies on the MMA Musical Midi Accompaniment system written by Robert van der Poel <bob@mellowood.ca>.
The Band-in-a-Box import code is based on reverse engineering work by Alf Warnock <http://www.alfwarnock.info/alfs> and Alain Brenzikofer <biabconverter@brenzi.ch>