Soundfont player

I am looking for a way to play a specific soundfont from the command
line on a beagleboard that I have. Does anyone know of such an
application that can do this? I searched but cannot find anything

The basic scheme is that I will send serial commands to the
beagleboard for the particular note to play.

Or is there a way I can have these 'notes' as seperate .wav's and mix
them to play simultaneously at will via an existing application?

I am new to the Beagleboard and newish to Linux so your thoughts would
be greatly appreciated!

Many thanks in advance