This piece was commissioned and titled by Andy Bannister.
Explaining why he picked this title, he said, “My thought process for this, is that the first half sounds like a catalyst for a reaction towards the latter half which could also be interpreted the sound of a substance or object changing state, like liquid to gas etc.”
The time elapsed between the original commission and this post is a lot longer than usual and I can’t remember how the piece was made, but according to my filing system, it was made using chaos synthesis on a Eurorack. This is a type of frequency modulation where oscillator A modulates oscillator B, which modulates oscillator C which modulates oscillator A. This is an exciting system because the feedback makes it chaotic.