4chordsStudios

iPhone · iPad · Mac

SUS4 Loop Builder

Record and stack loops on up to eight tracks until the groove locks in.

SUS4 Loop Builder App Store screenshot

SUS4 Loop Builder is a multi-track loop recorder for building ideas layer by layer, on iPhone, iPad and Mac. Record the first loop, then overdub new parts on further tracks, each one locked to the same length so everything stays in time.

The layering model is additive. You build up the idea loop by loop, hearing how each part sits against the others as you add it. Each layer has its own level and mute, plus reverb, delay and three-band EQ, so you can find the balance as you go, and a count-in helps you come in on time.

When an idea works, save it to the loop library to come back to, or bounce the mix to an audio file to share or take into your DAW. Loop building is a quick way to test whether a combination of parts works before committing to a full arrangement, and Loop Builder is designed for that exploratory stage.

Available on

iPhoneiPadMac

Goes well with

  • SUS4 Drum PadSixteen pads, 25 kits, a step sequencer and a looper for sketching beats.
  • SUS4 SketchpadCatch a song idea: lyrics, chords, a hummed melody and voice notes.
  • SUS4 Backing TracksJam over drums, bass and chords in any key and tempo, or build your own.

Made by a working recording studio

SUS4 is made by 4chordsStudios, a recording studio in a quiet UK village with a live room and a Dolby Atmos mixing room. We work with independent artists from the first session to release day and beyond.

See the studio →