One of the highlights of CTM.12 is the homage to Conrad Schnitzler, "sound laborer" and experimentalist early on explored the potential of the synthesizer in its early times. In 1967 he founded The Zodiak Free Arts Lab in the current building of HAU 2, a platform for the free musical research which laid the foundation for an upcoming scene with musicians Tangerine Dream, Ashra Tempel or Klaus Schulze. Schnitzler died last August at the age of 74, but his has legacy inspired young musicians across generations. To honor him, the CTM.12 presented a concert by his friend and associate Wolfgang Seidel playing an improvisation with the current Free Arts Lab. A playerless classical piano performed some of Schnitzler's compositions (Piano Works Vol.1 and Klavierhelm) symbolizing the gap left by the artist. Today Wolfgang Seidel will play Schnitzler's "Cassette Concert" at HAU 2, and tomorrow Qluster will perform also under the Zodiak program.