Computer technology enables the composer to experiment for the first time in the area of micro-tonality. When working with micro-tonality, the unexpected learning capacities of the human brain become visible. Questions of a european tradition of acoustical perception are as unjustified as the (wrong) presupposition of a disposition of our auditive apparatus.
Experiences in the use of microtonal modalities reconfirm the interaction with consciousness and point towards a limiting dynamic that is in a close connection with chromatics.The physical aspect of the sound is added the spiritual-psychical aspect of interval structure. And it is the space between the sound events that induces a transformation of consciousness. (A. Roidinger)

“Siamesic Sinfonia” a composition in 10 parts and 7-tone-temperation, duration 15'20".

Adelhard Roidinger's musical field of activities covers playing with symphony orchestras as well as free jazz and solo concerts with computer and visual components. As a musician (double bass and E-bass), he played with internationally renowned musicans (Walter Norris, Benny Wallace, Yosuke Yamasita and others). Adelhard Roidinger teaches at the Salzburg Mozarteum and in Tokyo. At present he is lecturer for improvisation and ensemble music at the Graz Music College. He is head of the Jazz department of the Anton Bruckner Conservatory in Linz, lecturer for “Cybernetics in Art, Design and Architecture” at Graz University. Besides the Jazz, his main interest focuses on “non chromatic” music and the “theory of oscillation in two and three-dimensional media with the aspect of transformation”. He has written articles for Ars Electronica and is presently working at a publication series about “non chromatic music”.