

Introduction
Paul Silber
1
3:00
The Human Voice Introduced by Roy Hart
Roy Hart
2
3:55
Demonstration of Child's Voice
Roy Hart
3
1:50
Roy Hart Demonstrates Various 'Specialised' Voices
Roy Hart
4
2:59
Comparison of a Normal Range and a Five Octave Range (feat. Dorothy Hart)
Roy Hart
5
4:10
Roy, Dorothy Hart and Kaya Anderson Using Broken Sounds (feat. Dorothy Hart & Kaya Anderson)
Roy Hart
6
2:03
A Boy, Roy and Dorothy Hart Sing 4 to 5 Octave Leaps (feat. Dorothy Hart)
Roy Hart
7
1:01
Roy Hart Sings 6 and a Half Octaves
Roy Hart
8
1:10
Roy Hart's Voice in Comparison to a Cello and a Violin
Roy Hart
9
3:28
Dorothy, Kaya and Marita Colour Their Voices as Violin Viola and Cello
10
1:30
Roy Hart Demonstrates Primaeval Sounds
Roy Hart
11
1:00
Roy Hart Sings 'Chorded' Sounds
Roy Hart
12
0:30
Using These 'Chorded' Sounds Roy Hart Sings 'O Come All Ye Faithful'
Roy Hart
13
2:44
Roy Demonstrates Using Iago's 'Credo' Sung Conventionally (In Comparison to the Next Track) [feat. Dorothy Hart]
Roy Hart
14
2:32
The Same Aria Sung by Roy Hart with Fullest Expression (feat. Dorothy Hart)
Roy Hart
15
5:16
Rhapsody on a Windy Night
Roy Hart
16
6:44
Roy Hart Sings 'Niun mi tema' from the Opera Othello (feat. Dorothy Hart)
Roy Hart
17
1:52
Roy Hart Concludes
Roy Hart
18
0:29