This article is from the Electronic and Computer Music FAQ, by Craig Latta Craig.Latta@NetJam.ORG with numerous contributions by others.
From Nathan Torkington <firstname.lastname@example.org>:
DMCS is available for Amiga & Macintosh and probably others.
Offers an easy way to play and print simple music. It is more suited
to casual users than serious composers. [more info, please -- price,