The wonderful thing about microtonal tunings is sort of a Forrest Gump deal: You never know what you’re going to get. There is literally no music theory that will explain what works harmonically and what doesn’t. It’s all down to intuition.
Here’s a new piece in 19-tone equal temperament. For reasons that you might possibly notice as you listen, it seems to be called “Now Leaving on Track 19.” The main harmonic idea is the sub-minor triad. The style is deliberately retro, except for those places where 4/4 time gets left standing on the platform.
Except for Native Instruments Battery 3 contributing a few discreet drum samples, all of the instruments are u-he Zebra 2.5. The sequencing was done in Image-Line FL Studio 10.