I need a simple audio player that will play a single audio track on the push of a momentary button, and then queue up the next track which will then again be played only when the button is pushed.
If possible, I would like to use two buttons and have certain tracks linked with each button. For instance, tracks 1 through 4 would be played in order when button 1 in pressed. Tracks 5-8 would be controlled by button 2.
I can either order an Arduino Uno and a Adafruit Wave Sheild and have them overnighted to me, and I will build them myself while someone else writes the code. Or, if someone happens to have the necessary hardware on hand already I can pay you to build, program and test the device and then overnight the whole thing to me.
I need a working unit by 10/11/2012 (This Thursday). I know it's a rush but the need for this unit arrose only at the last minute

. Anyone who may be able to help, please let me know ASAP.