On this page you will find a collection of our videos and music tracks.

A collection of our CD’s can be bought from the following websites:

duo Contour – Frey Beuger / Edition Wandelweiser

DMR/ Wergo Elena Mendosa,281211.html

Ensemble Linea plays Eötvös – BMC records CD 175

Microtonal Projects:

NEW! RASP, 19- division trumpet

The Yasser Collection, 19- division trumpet

24 Microtonal Studies

Jörg Frey- Collection Gustave Roud


More Videos

Extended Techniques on the 19-div Trumpet Split Tones Microtones on the Trumpet 19-division tuning Introduction and Studies    


Please enjoy our collection of music from our soundcloud page. Stephen C. Altoft Soundcloud