Ways to play sounds on a microcontroller

What are some methods to play sounds on a microcontroller. Is there anyway to do it using one of the following programs;

- Bascom AVR
- Great cow graphical basic
- great cow basic
- AVR studio

Thanks in advaced

Anybody?!?!?!! I know this is possible, I just don't know how.

Hi...
I recommand u to visit NerdKits page on youtube ( Make Music with a Microcontroller ) .... it can help u !
Exse me i'm using MPLAB studio for Microchip MCUs

Good luck