«The theme of this compilation is implied in it’s title : the basic musical motif or the dominant moment of the tracks contain the 4 tones C, C#, D# and E.

In 1973 Bernstein held the first in a series of lectures entitled Unanswered Question on music phonology, exploring the idea of the universal root/monogenesis of music. The first example he gave was the CC#D#E group of notes occurring throughout many classical, modern and folk pieces.
Although the lecture doesn’t give an explanation of the supposedly universal nature of this occurrence, it does make us wonder whether playing around that group of notes would wake us to some universal feature of music. So the aim was to find out and play with something that is unprovenly universal and probably deeply rooted in the very existence of music.»