A busy drum pattern works best when the melodic elements are sparse, and vice versa
Arrangement density is a shared budget: a busy, intricate drum pattern occupies rhythmic and timbral space that busy melodic content would otherwise fill. Layering a complex drum grid under equally complex melodic parts produces clutter where neither can be heard clearly. The practical principle is to trade complexity between layers — a busy drum grid pairs with sparse, sustained melodic material; simpler drums leave room for denser melody. The tutorial says its fairly busy beat is ‘ideal if the melodic elements elsewhere in your track are sparse,’ and to simplify the rhythm ‘if there’s more going on in other parts.‘
Examples
Busy drum grid + a single sustained pad = both parts breathe and stay clear. Busy drum grid + a busy 16th-note arpeggio = cluttered, nothing has prominence. A simple kick foundation leaves room for rich layered melody.
Assessment
Put a busy future-garage drum pattern under two different melodic layers — a sustained pad, then a busy 16th-note arpeggio — and compare how each interacts with the drum complexity. Which works better and why?