Proud owners of the Second Generation Terpstra Prototypes:

Bo Constantinsen   —   What Music Really İs
William Sethares   —   http://sethares.engr.wisc.edu/
Dolores Catherino
Carl Lumma
Michael Battaglia
Juhani Nuorvala
Kalle Aho
Graham Breed
Hans Straub
Zac Cogswell
Cam Taylor   —   https://soundcloud.com/camtaylor-1
Gareth Hearne
Will Stewart
Dustin D Schallert
Kurt Bigler
Douglas Keislar
Roberto Trevisan
Taideyliopisto, Sibelius-Akatemia
Bent Schmidt-Nielsen
Hans-André Stamm
George Secor
Michael Vannice
Vilhelm Gustafsson
Ere Lievonen
Georg Hajdu
Paleo Nath
Gjalt Jan Wijmenga
Ryan Schroeder
David Stützel
Yossi Tamim
Robin Pitre

Other Supporters Who Made This Possible:

Andrew Meronek
Ken Rushton
Heinz Bohlen
William J. Croft
Erasmus T. Hansen
Mikael Persson
Anonymous Contributor
Roy Pertchik
Clark Battle
John Lank Moriarty
Roberto Trevisan
Matthew Edwards
Leif Bloomquist
Andrew Styrmo
Pentti Lievonen
Adonis Alvanis
Juhani Nuorvala
John H. Chalmers
Ere Lievonen

Special thanks to:

Siemen Terpstra
Johnny Reinhard
Joel Mandelbaum
Garnet Willis
Michael Battaglia
Carl Lumma
Gunnar Eisenberg & The Einklang Team
Kurt Bigler
Melle Weijters
Eric Rankin & Alanna Luna
Johannes K. Drinda