The Extended Module Player, or xmp, is a portable command-line module player for Unix and Unix-like systems such as Linux, BSD, Solaris, HP-UX and MacOS X, and also QNX, BeOS, Windows, OS/2 and AmigaOS. Xmp plays over 90 mainstream and obscure module formats from Amiga, Atari, Acorn, Apple IIgs and PC. There are experimental plugins for Audacious, Beep Media Player, XMMS and Winamp.
Thanks Peter Kirn!