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Try a modulation to F after the bass doodle and add the delayed square sequence back. Then back to C. Might work - need to sleep on it. Added a morphed variant of the wobbly bass pattern after the modulation. I can't decide if I like the "doesn't quite sound like a melody" randomness of these bass inserts or if I hate them :)
Adds a wee bit of distortion to the synth drums at @Vin's suggestion - I like it! While I was at it, added some delay on the drums and increase it as the track progresses - just can't help myself.