I'm working on a drone electronic project now. It's hard to write and keep it "not music" for me; I keep getting pulled toward melodies and chord changes, and rhythms. When I go too far away from those things, I start questioning what I'm creating. I keep reminding myself to keep it simple. I've given some parameters, like an underlying tempo and key, but I've tried to avoid much more harmonic and rhythmic complexity. Sunn O))) has been an influence in terms of the spirit of what they do, even though I'm not directly trying to emulate their style. I like waves of evolving sound. It doesn't have to have s hook in a conventional sense, but there needs to be a theme I identify and latch on to.
Native Instruments Maschine has been a big part of this for me. It has a huge sound library, which is inspiring and daunting. The 16 pad midi interface makes my brain stop working in a fretboard or keyboard sense, and makes my ears hunt for the sound I'm after. It takes muscle memory out of the creative process for me. I'm a huge fan of this product. It's not cheap, but it lights up my creativity and it's very easy to work with.