During this week, I was playing some chords on the piano — looking for new harmony for the ACJC Alumni choir new commission. At the end, I ended up with three chords (image 1)
Image 1 - my first 3 chords - sketch notebook, 3rd of January 2018
Chord 1 and chord 2 were taken from the Bb harmonic series. The partials are for chord 1: 9th (octave down); 10th (octave down); 15th (octave down); 16th (octave down) and 22nd (octave down) - image 2 & 3
Image 2 - harmonic series in Bb - base for the chord 1 and chord 2 - general sketches, 05th of January 2018
Image 3 - partials of the chord 1 - general sketches, 05th of January 2018
The partials for chord 2 are: 7th (octave down); 22nd (octave down); 15th (octave down); 5th; 6th and 19th (octave down) - image 4
Image 4 - partials of chord 2 - general sketches, 05th of January 2018
Chord 3, is the only one that the harmonic series changes. In this case in B nat. (Image 5)
Image 5 - harmonic series in B - 3rd chord - general sketches, 09th of January 2018
The partials for chord 3 are: 21st (3 octaves down); 15th (2 octaves down); 4th; 5th; 6th; 9th and 21st (octave down) - image 6
Image 6 - partials of chord 3 - general sketches, 09th of January 2018