iPhone · iPad · Mac
SUS4 Loop Builder
Layer and arrange loops until the groove locks in.

SUS4 Loop Builder lets you layer and arrange loops until the groove locks in. Available on iPhone, iPad and Mac, you can record or import loops across multiple tracks and arrange them into a repeating structure.
The layering model is additive. You build up the arrangement loop by loop, hearing how each part sits against the others as you add it. The focus is on groove construction: does the combination of parts create the feel you are after? You can mute, solo and adjust level on each layer to find the balance.
Loop building is a quick way to explore a production idea or test whether a combination of elements works before committing to a full arrangement in your DAW. SUS4 Loop Builder is designed for that exploratory stage, prioritising speed and responsiveness over feature depth.
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