# Gamma Elegy

Listen to Gamma Elegy

(the second part of this song, renamed Gammatar, is featured on my album Gammatar)

This piece is the second one I have composed using my Opal Chameleon (the first one is Chameleon In The Dark).

What’s new is that I have used a completely different note layout for it thanks to an application created by X.J.Scott.

It allows the assignment of midi notes to the keys of an isomorphic keyboard. Look at the following picture:

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This is an example of the layout for this piece: from C1 to G#2 there are 20 midi steps, from C1 to B1 11 midi steps and from C1 to A1 9 midi steps.

What is that supposed to mean? The tuning system for this piece is again Carlos Gamma that divides a ratio 3:2 into 20 equal steps.

So, with this layout, playing C1 and G#2 I get an interval with ratio 3:2 (a perfect fifth, in traditional terms).

What about the interval C1/B1? A step in Carlos Gamma is 35.098 cents, so 11 steps equal 386.078 cents (ratio 5:4 is 386.313) so we can say it equals a major third.

And interval C1/A1? 35.098*9 = 315.882 cents (ratio 6:5 is 315.641) is very close to a minor third.

So, the chord C1/B1/G#2 is a major triad and the chord C1/A1/G#2 is a minor chord.

Let’s expand this pattern:

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Direction south/north equals a chain of intervals with ratio 3:2, direction southwest/northeast equals a chain of intervals with ratio 5:4 and direction southeast/northwest equals a chain of intervals with ratio 6:5 (notice that going west/east we get steps of 35.098*2=70.196 cents).

Enough theory!

This piece features Spectrasonics Omnisphere and a mysterious singer adding the necessary “dash of imperfection” to an otherwise very

calculated track.