Lend me your ears : phonotation of words in range of 7 octaves : female voice
Duet in new vocal sound range
Boy's voice
Four & five octave leaps on the word "viola"
Double & multiple stopping by the voice
Demonstration of different colorations on same notes
Five female voices
The male & female voice
New registers
Nine octaves
String quartet for four female voices
Examples in single voice
Duets, voice and instruments.