Here's something to play with. The sound generation is basically a polyphone synthesizer with a simple delay with a variing read-offset to make the tones vibrating in the end. understand? No? Don't worry, we don't either but it's good fun :-)
From: http://blog.andre-michelle.com/2009/the-amazing-ride-of-tonematrix/
Some of the DESS choir were invited to Dubai 92 radio station to record a series of Christmas songs which are to be played each morning by Breakfast Show presenters CATBOY & GEORDIEBIRD.
On Wednesday December 8th the DESS school choir were invited to sing Christmas carols at the turning on of the Christmas lights at the Dubai Festval Centre.