Josef Riedl, "Vielleicht-Duo" (1963/70)

The 'Vielleicht- Duo' (which originated from the sentence "perhaps it is so, but perhaps it is not so" from Buchner's 'Leonce und Lena') is written on the one hand for a vocalist who changes his sounds by means of water - whereby he speaks into a bowl of water or with water in his mouth - on the other hand for electronic sounds which imitate human speech by means of a Vocoder. It is a duet of alienated natural speech and naturalized artificial speech, which comes into being through the reactions of the vocalist to the tape - improvisation to a slightly improvised cantus firmus.