Sisask was born in
Rapla on 9 September 1960. One of the major inspirations for his music was
astronomy. Based on the
trajectories of the
planets in the
Solar System, he created the "planetal scale", a
mode consisting of the
pitches C#, D, F#, G#, and A. Later, he discovered to his surprise that this was exactly the same as the
Japanese Kumajoshi mode, which is also known as the Japanese
pentatonic scale. ==Discography==