This video, via Kris Lennox, captures a performance of his microtonal piece for Dave Smith Instruments OB-6, Geothria.
Here’s what Lennox has to say about it:
The work is tetradecatonic (14-note scale). Each line/space on the score = one quarter tone. The note sitting below the first line = root (i.e the lines are a floating/relativistic system, as opposed to a fixed-pitch system).
If the ear isn’t familiar with 24-TET, it can sound very wrong. Personally, I love it. The harmonies are impossible to achieve within our 12-tone system.
They haven’t (yet) been codified to emotion (e.g ‘major = happy’). This can yield an interesting experience for the listener, as the cultural harmonic associations with emotions doesn’t yet exist.