I have yet to actually receive my Norns, but I’m already bursting with ideas about what to do with it! If I can get my hands on a Crow, I’d really like to build a sequencer/LFO tool which works based on orbital mechanics.

Specifically, I’ve been interested in the mathematical dynamics of elliptical orbits for a long time, and Crow is kind of perfect for exploring this - four outputs means I can have three bodies, form lines between each pair, and output the **angles** between each of them as well as the **area** of the triangle they form. These produce deterministic but interesting waveforms; for example, here’s the area swept out by three bodies in circular orbits at various resonances:

It’s kind of like a wavefolder.

This becomes much more interesting for sequencing when we consider sampling, or latching, this waveform at intervals. Regular intervals, especially prime number ratios, give basic not-quite-repeating melodies:

More interesting still, though, is what happens when we sample the system *based on the system itself*, by only taking a new value at the time when any two bodies are at their closest or furthest point from one another:

(here, systems of circular bodies with ratios of 7/11/13 and 7/11/15). These are complex, interesting patterns, which repeat perfectly after a period of time and include **naturalistic elements** of performance, like portamento or glide. Quantizing to a scale when latched preserves musicality.

Obviously, these are just very basic plots I worked out in a simple Python script, but I hope to replicate a similar idea with elliptical orbits and proper quantization when my Norns arrives. I would love to hear what the Lines community thinks of the idea!