This music module has 4 channels of pattern data. Depending on the format used, more channels may be played simultaneously.

Ishar: Legend of the Fortress is a 1992 role-playing video game developed and published by Silmarils for the Amiga, Atari ST, Macintosh, MS-DOS, and Atari Falcon home computers. It is the first entry in the Ishar trilogy.

MOD is the tracked music format used by ProTracker and many compatible tracker applications. This tag also covers variants of the MOD format with identical file structure but more than four channels.