A shorter recording from a duo which released a long OOP Mini-CD in 1997 - see here.
Sung/spoken or better a kind of 'Sprechgesang' similar to Schönberg's 'Pierrot Lunaire'.
At least that's how I tend to hear Sven-Åke Johansson's vocal utterances.
Text is in German - but the sounds might be enjoyed anyway.
Sven-Åke Johansson, voice
Sten Sandell, piano
Recorded in Ulrichsberg, Austria during the 'Kaleidophon' in May 1998