For programs which are part of the GNU music project, the following mailing list have been setup:

info-gnu-music@gnu.org
     A moderated list for information on the GNU Music project, to subscribe: send mail with subject "subscribe" to info-gnu-music-request@gnu.org.

     As this list is moderated, normal people should ask to David R. Linn or Han-Wen to forward announces instead of sending it to info-gnu-music@gnu.org

     Since the GNU Music project currently only has LilyPond, this list is mainly for announcing new versions of LilyPond.

     http://www.mail-archive.com/info-gnu-music@gnu.org

help-gnu-music@gnu.org
     For help with programs from the GNU music project. To subscribe: send mail with subject "subscribe" to help-gnu-music-request@gnu.org

     Since the GNU Music project currently only has LilyPond, this list is mainly about using and extending LilyPond.

     http://www.mail-archive.com/help-gnu-music@gnu.org

bug-gnu-music@gnu.org
     If you have bugreports, you should send them to this list. If you want to read all bugreports, you should subscribe to this list.  To subscribe: send mail with subject "subscribe" to bug-gnu-music-request@gnu.org http://www.mail-archive.com/bug-gnu-music@gnu.org

gnu-music-discuss@gnu.org,
     For discussions concerning the GNU Music project, to subscribe: send mail with subject "subscribe" to gnu-music-discuss-request@gnu.org This list is archived at http://www.mail-archive.com/gnu-music-discuss@gnu.org

Announces of new versions will be sent to info-gnu-music and gnu-music-discuss.