Filling the entire arrangement with material first, then subtracting, avoids the blank-canvas problem
Starting an arrangement from the beginning and building left to right requires creative decisions at every step in an unprepared state. An alternative: immediately fill the entire arrangement timeline with material (any combination, 20 seconds maximum), then listen back and remove what does not work. The subtractive workflow is easier than additive because it is easier to judge that something is wrong than to imagine something right. Working backwards from excess material — the dense drop exists already; remove elements toward the beginning — mirrors how the listener will experience the track. This workflow particularly suits genres where textural density varies continuously (house, techno) rather than genres with contrasting sections (pop).
Examples
In the DAW, copy and paste all clips across the entire timeline at maximum density. Press play. Remove elements that obviously clash or that sound wrong in context. Each removal is a creative decision from a position of response, not anticipation.
Assessment
Fill your next arrangement with material immediately and completely, spending no more than 30 seconds. Listen back. Remove the first three things that sound wrong. Evaluate whether this starting point is easier or harder than a blank timeline.