flange for a bar.low pass filter some loops down say over 32 beats (8 bars) keep it down for 32beats then start bringing it back up over 32beats. drop synth in on the last bar of 8 bars or 16. a crash on the start of 8 bars. bring in more sounds every 8bars drop out sounds. have a hi pass in there for a bar with some automation on a load of sounds like drums and bass.