4' 33" vs Loopy Pro

Create a performance of John Cage's 4' 33" and share the results with the world. Listen to the more than 2,500 performances that have already been created.

Loopy Pro: Live Looper, Sampler, Sequencer, Customisable DAW Loopy Pro is a customisable music creation environment that blends looping, sampling, MIDI sequencing, and full plugin hosting — with a creative canvas that you control. Whether you’re building a performance environment, sequencing beats, designing your own instruments or effect chains, or syncing up with external gear, Loopy Pro gives you the tools to build exactly what you need. And have fun doing it! TRY IT FREE FOR 7 DAYS — no commitment, no signup, no subscription. ————— CUSTOMIZE YOUR WORKFLOW Loopy Pro is like musical Lego. You can add loops, one-shots, and buttons to the canvas along with customized sliders, dials, XY pads, clip slicers, encoders, grids, and more. You can use your iPad or iPhone stand-alone, or connect audio interfaces, MIDI controllers and external instruments. ————— LIVE LOOPING WITHOUT LIMITS • Record with count-in/out or freely, with audio threshold, or retrospective capture • Detect loops automatically — just play and it finds the loop • Structure songs with Play Groups and transitions • Layer overdubs with peel/replace • Sync and quantize with groove and tempo control • Automate anything: trigger scenes, send MIDI, control effects, or react to clip events • Easily import audio to incorporate pre-recorded loops and samples, with studio-quality tempo and pitch controls • Use the project sequencer timeline for arranging songs completely hands-free, with all kinds of options for song sectioning ————— SEQUENCE MIDI & BUILD INSTRUMENTS • Record and edit MIDI clips with built-in MIDI sequencer/piano roll editor • Quantize with swing, randomness, or your own groove • Trigger audio clips polyphonically and pitched • Automate playback for hands-free performance ————— MIX, ROUTE & CONTROL YOUR SETUP • Full-featured mixer with inserts, sends, buses, and effect chains — perfect for deep sound design • Host AUv3 instruments, effects, and MIDI processors • Dock plugin windows for a clean workspace • Multitrack session recording with isolated stems ————— CONNECT WITH GEAR • Send/receive MIDI, sync clock, change patches • Use multi-channel audio interfaces • Route click track to your ears, loops to the PA • Control pedals, synths, other apps or hardware • Extensive MIDI controller support, including built-in support for the Launchpad, the APC Mini Mk2, APC Key 25 Mk2, APC40 Mk2, and the MIDI Fighter Twister, and effortless MIDI Learn for setting up your controllers. ————— USED BY MUSICIANS AT THE FRONTIER Loopy Pro is used on stages and in studios around the world by artists pushing the boundaries of live looping and performance. It’s more than an app — it’s a platform for musical invention. ————— PRICING Loopy Pro uses a classic pay-once model: • 7-Day Free Trial – No commitment. • One-time purchase – Keep forever. Includes all features released for the following 12 months. • Optional upgrades – Buy additional 12-month feature updates any time. You keep everything you pay for. No subscriptions. No lock-in. Just years of evolution, funded sustainably. Read more at loopypro.com/pricing ————— Questions? Reach out: support@loopypro.com Join the community: loopypro.com/communities If you’re unable to afford Loopy Pro or you’re from an educational institution, feel free to get in touch.