Combining two Korg SQ-10 sequencers

This is a really interesting way to generate tunes.
It uses the mathematical idea of Lowest Common Multiples (LCM).

The idea for this patch & video came from a fellow You Tuber, Mike Olson.
He posted a cool video showing how to use a single Korg SQ-1 to make a sequence longer than 16 notes.
https://youtu.be/JYTCQ1zrtvc

Mike demonstrated how by combining two 8 step sequencers, he could generate a miriad of patterns on the fly with final step lengths ranging between 1 & 56

I decided to replicate this patch using two old Korg SQ-10 sequencers.

They have a maximum sequence length of 12. However, by combining two, one can achieve a large range of step numbers ... between 1 & 132
The control voltage out of the two sequencers is added before it enters the synth (a Korg MS-20 in this case).

 And the MS-20's envelope is triggered every step on the sequence.

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#korgms20 #korg #sq10 #ms20 #korgsq10 #sequencer #lowestcommonmultiple #lcm

A post shared by jono (@dj_jondent) on Apr 23, 2020 at 7:48pm PDT

I've drawn up a new table (16 x 16).

Please excuse my very rough handwriting. The top horizontal row and the left vertical row are the sequencers. They are related to one another via the grid. Their intersection is the LCM.

The relationship between the two initial step lengths (sequence A + Sequence B) and the final  Sequence length uses the mathematical principle of Lowest Common Multiples.
The final sequence length is the LCM of the two initial step lengths (sequence A + Sequence B).

You should be able to replicate this with any two sequencers.
 ---------------------------------------
eg:
What is the LCM of 4 & 7?
      
Multiples of 4 are:
4, 8, 12, 16, 20, 24, 28, 32,36,40, 44, 48, 52, 56, 60, 64, 68, 72..... etc
Multiples of 7 are:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, etc
Common multiples of 4 and 7 are the numbers that are in both lists:
28, 56..... So, from this list of the first two common multiples of the numbers 4 and 7, their lowest common multiple is 28.
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Hopefully this wasn't too geeky and you've made it to the end of the post without falling asleep.
:-)
All this is a perfect demonstration of the close relationship between mathematics & music.
I think this is a cool way to discover new melodies.
It would be neat to see how the addition of two more sequencers  would add to this complexity.

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