triO+
http://trioplus.free.fr/
trio-to-go
http://www.triotogo.nl/
ASKO/SHOENBERG ENSEMBLE
http://www.askoschoenberg.nl
SOUNDS OF MEXICO
http://www.soundsofmexico.info/
ENSAMBLE 3
http://www.ensamble3.com/ensamble3.html
Duo LUXA
http://www.duoluxa.com/