alt.music.misc - join
Use rec.music.misc instead.
Low activity, 51 subscribers, Usenet

alt.music - join
Low activity, 236 subscribers, Usenet

Music HQ - join
This is an all Music Discussion Group. Here you can share anything about Music. These can be announcements, reviews, new genres, upcoming artists, music related software, techniques, artist exchanges, music related projects. Artists are most welcome to join this group.
Low activity, 225 members, restricted

rec.music.makers.songwriting - join
All about songwriting.
Low activity, 765 subscribers, Usenet

rec.music.reviews - join
Reviews of music of all genres and mediums. (Moderated)
Low activity, 105 subscribers, Usenet

rec.music.makers.bands - join
For musicians who play in groups with others.
Low activity, 137 subscribers, Usenet

rec.music.misc - join
Music lovers' group.
Low activity, 254 subscribers, Usenet

rec.music.makers - join
For performers and their discussions.
Low activity, 188 subscribers, Usenet

alt.music.independent.ads - join
Post about your crappy band's CD here, not a.m.indie
Low activity, 22 subscribers, Usenet

alt.music.alternative - join
For groups having 2 or less Platinum-selling albums.
Low activity, 167 subscribers, Usenet