Scratch

Hi

I am doing a version of the musical composition 'In C' by Terry Riley - this will be 53 separate mp3 soundfiles that I want to play through where each sound file plays a random number of times (between 1 and 10, for instance) before going on to the next one in the sequence and 3 sequences (or more) would be playing simultaneously.

If there was a 'next costume' script for  sounds I think I could do this but as there isn't I am not sure where to start - any ideas ?

This is my version 1, where the 53 musical sections are in one mp3 and you can have up to 4 playing through but at different start times. http://scratch.mit.edu/projects/cheewowasmum/570881

Thanks