The looper snags what you just played. It records continuously in the background, so when a phrase comes out right you capture itafter the fact — bar-synced, from a moment already gone, rather than having to arm a take first.

• Bars chips are guides, not cutters: the loop you declare sets its native tempo, and the song adopts it when you apply.
• Loops land in banks and sets so a performance can be built from parts.