Marimba
Grab It! - Jacob ter Veldhuis (European premiere in 2013 and South-American premiere March 21st 2015)
Reflections on the Nature of Water - Jacob Druckman
Velocities - Joseph Schwantner
Khan Variations - Alejandro Viñao
Fertility Rites - Christos Hatzis
Land - Takatsugu Muramatsu
1st Cello Suite - Johann Sebastian Bach
Libertango - Eric Sammut
Vibraphone
Texas Hoedown - David Friedman
Schwarze Wolken - Edison Denisov
Loops II - Philippe Hurel
Vibra-Elufa - Karlheinz Stockhausen
Green Yellow Green Red - Nick Zammuto (European premiere played by Niek KleinJan on the 12th of April 2015 in Almere, Holland)
*New piece for prepared vibraphone* - Arend Gerds
*New piece for vibraphone and electronics* - Matthijs van Driel
Set Up
Rebonds (A&B) - Iannis Xenakis
Frum - Áskell Másson
Side by Side - Michio Kitazume
Thirteen drums - Maki Ishii
Begin - Arend Gerds* (World premiere in 2013)
Snare drum
Prim - Áskell Másson
Stop Speaking - Andy Akiho (European premiere on the 12th of April in Almere, Holland)
Dasselbe ist nicht dasselbe - N.A. Huber
Kim - Áskell Másson
Meditation nr. 1 - Casey Cangelosi
Asventuras - Alexej Gerassimez
Reflection - Tomás Montero*
Miscellaneous
?Corporel - Vinko Globokar
Temazcal - Javier Alvarez
Songs - Stuart Smith
Toucher - Vinko Globokar
X,Y Counterpulse - Edgar Guzmán* (World premiere on March the 10th 2015 in Queretaro, Mexico)
*New piece* - Wim Henderickx
*Pieces written for Niek KleinJan.
Chamber music pieces written for Niek KleinJan and others:
A collection of themes by Beethoven - Lionel Ziblat (Duo Wolfs/KleinJan)
Die Zauberflöte-Suite - W.A. Mozart (arr. Bram Kortekaas) (Duo Wolfs/KleinJan)
Utopia - Augusto Meijer (Duo Wolfs/KleinJan)
Feroce - Martijn Oostra (Duo Wolfs/KleinJan)
Eb (flow) - Chris den Dulk (Duo Wolfs/KleinJan)
Angle of Attack - Arnold Marinissen (Niek KleinJan & Konstantyn Napolov)
Duet for vibraphone & clarinet - Arend Gerds (Duo Wolfs/KleinJan)
3 Reflecties voor Orgel, Beiaard en Slagwerk - Cor Ardesch (Cor Ardesch, Boudewijn Zwart & Niek KleinJan)
Percussion Concertos:
Balance of Power - Bram Kortekaas* (Commissioned by the Nederlands Studenten Kamerorkest and especially written for Niek KleinJan)
Affirmation for Solo Percussion and Orchestra - Andrew Beall
Concerto for Percussion and Orchestra - Joseph Schwantner
The Tears of Nature - Tan Dun
Veni, Veni, Emmanuel - James Macmillan