We are grateful to...

Perry D'Armond
Andreas Bergh
Robin Bigwood
Thomas Bryla
Lanny Davis
Jan Frans van Dijkhuizen
Joseph Felice
Niclas Fogwall
Hans Holema
Blaž Jurjevčič
Mario Kruselj
Andrei Kuznetsov
Cédric Lemoulan
Friso Lücht
Sébastien Monneret
Steve O'laughlin
Gilles Paris
Dave Polich
Piet De Ridder
Luis Rojas
Sandy Ralambondrainy
Jacques Ronga
Jordan Rudess
Claude-Gérard Sarrazin
Nadia Shpachenko
Nathan Shirley
Jacob Smullyan
Ken Suguro
Eran Talmor
Jason Tung
Emmanuel Tuts-Schiemsky
Matthew Tyas
Paul Van Bladel
Jim Vogts
Heinke Walzel-Aussenegg
Stig Göran Wistbacka
Scott Yahney
Stuart Yates

... for their valuable contributions.


Special acknowledgments to the following instrument owners:

Many thanks also to our customers and forum users who shared with us their valuable opinions and ideas.