Klaus Lang was born in Graz in 1971 and lives as free lance composer and organist in Steirisch-Laßnitz. He studied composition, music theory and organ at the Musikhochschule Graz, where his teachers included Hermann Markus Preßl, Beat Furrer und Younghi Pagh Paan, among others. Klaus Lang received orders for composition from numerous renowned festivals for new music such as steirischer herbst, Wien Modern, IMD Darmstadt, Eclat Stuttgart, Maerzmusik Berlin, Osterklang Innsbruck, Tage zeitgemäßer Musik Bludenz, Musikmonat Basel, Takefu Festival (Japan), Lucerne Festival and Wittener Tage für neue Kammermusik. He wrote music theatre work for the Bonn opera, the Tiroler Landestheater, the Hebbeltheater Berlin and the Aachen Theater. Alongside his activity as a composer, Lang regularly appears as an organist of old, new and improvised music, and has published numerous articles in music magazines.