[Smt-talk] Hexachords

[Olli Väisälä]

>
> C D E F Ab Bb [C] (in semitones: 2 2 1 3 2 2)
> and
> C# D# F# G A B [C#] (or: 2 3 1 2 2 2).
>

Dear Sandeep,

My first association is with Scriabin's "Prometheus" chord and with  
incomplete forms of the "acoustic" scale (or other modes of  
"heptatonia secunda").

Arrange the latter hexachord registrally A–D#–G–C#–F#–B to get a  
transposed Prometheus chord.

Also:

Bb–C–D–E–F–Ab = acoustic scale without 6th scale step (G)

A–B–C#–D#–F#–G = acoustic scale without 5th scale step (E)

Best wishes,

Olli Väisälä
Sibelius Academy
ovaisala at siba.fi