I've just recieved copies of some marimba/sax duet recordings I made earlier this week for a demo CD. They sound pretty good so I've put 'em up on my web page:

http://144.92.129.138/.../matt/ddb/DuoduBois-BlackOrpheus.mp3
http://144.92.129.138/.../matt/ddb/DuoduBois-Misty.mp3
http://144.92.129.138/.../matt/ddb/DuoduBois-NightandDay.mp3

The arrangements/interpretations are pretty straightforward, but the sound is good so if you have any interest in jazz marimba, there ya go.

Thanks for the link.

What is the make and the model of the marimba?

Have you thought about arr. the sax part for cl.? It might sell more copies.