André O. MÖLLER
“Musik für orgel und ein(n) tonsetzer(in) …2003…”

Eva-Maria Houben, organ. “What do you do, if you work with just intonation and wish to write a piece for organ? you have to deal with the relation between equally tempered and over or undertonal (just) intonation. 2001 i had several opportunities to make a study of some wonderful instruments. This eventually put me on the path towards this composition. In this piece only those frequencies of the organ sound that have close to whole-numbered ratios (+/- 6 cents) to a fundamental (in this case C’ at about 32 Hz). Because the frequencies are never perfectly tuned – a result of the organ’s tempered tuning – more or less strong beatings and frictions emerge, that rhythmically and timbrally shape the inner life of the sounds. A realisation of this piece strongly depends on the disposition of the instrument and the performance space. The version at hand corresponds approximately to the first performance by Eva-Maria Houben at St. Suitbertus church, Dortmund october 3, 2003. For this cd I tried to record the organ in such a way that the playback, instead of reproducing the church environment, projects the instrument into the listener’s space.” André O. Möller