Corbin released a small test program for the Wiz, you can test joystick and music functionality.

Quote:

This is my first little Wiz program. It is a simple SDL_Joystick test. I made some GIMP graphics for it and added music to test SDL_Mixer as well.

Feel free to download it and check out the source. I hope anyone getting started with Wiz development or SDL might find this helpful.

http://dl.openhandhelds.org/cgi-bin/wiz.cgi?0,0,0,0,38,297