if anything, try the pascal feos remix. one of my all time favorits. its mental how it climax. http://www.youtube.com/watch?v=poHK486zp3c

just make like a moog bass sound, and start poking at your keyboard. throw some detune on it if it doesn't sound right. it doesn't sound ridiculously difficult tbh

I would try to figure something out but I sold my keyboard and I hate messing around on abletons piano roll

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this is just a moog sound playing one note going up and down the octave every 16th note with variation in the top note. distortion, filter

The bassline is played legato style which gives it that smooth flow from one note to the next.