HiivelyPlay is a basic AHX/HVL module player with Wiimote and FrontSD support.

Copy the contents of “SDCard/” from the zip file to the root of your SD card, then put any extra AHX or HVL files you want to play in the “/hvltunes” directory. Then select HiivelyPlay from the homebrew channel. Follow the onscreen instructions to load and play AHX or HVL tunes.

http://www.wiibrew.org/wiki/Homebrew_apps/HiivelyPlay