This synth was inspired by looking for sounds that reminded me of the film "Lost in translation" which has a wonderful blend of music by Air, My Bloody Valentine, Brian Reitzell, Kevin Shields, Roger J. Manning, William Storkson. Some incidental pieces have a great Tokyo electronic feel, which I was trying to recreate. The mathematics of the patch are inspired by Jacob T. Joaquin using bifurcation of harmonics in a tree.
On each iteration we take a number and multiply it by a simple integer ratio, then do that again for the result, if the ratio is greater than one each time we get a larger number, if smaller we get a number less than our orginal. Curiously, when sorted these repeats of simple integer ratios always sound consonant, being derived iteratively from the same base. The patch just repeats this procedure indefinitely picking a fresh random base every so often.
The synth is polyphonic so that decaying voices in the sequence can overlap, there are no parallel voices as such, but each voice is 8 simultaneous harmonics. Longer chordal sounds emerge only by dint of the reverb and overlap, which you cab set with the deacy control. Each voice is composed of 8 sine harmonics taken from the tree combined additively. Some scaling is included to get the voice volumes to a nicer amplitude for their role as widely distributed component signals in an additive sound - they are tailed off by about 4db/octave above 1Kz.