MRT2 Studio

Create instrumental music locally after one model download. Hum or import audio, arrange sections, guide with MIDI, and shape the sound in real time.

MRT2 Studio is an on-device AI instrument for creating evolving instrumental music in real time on compatible iPhone and iPad devices. Download the model files once; generation then runs locally, with text always optional.

• Hum an idea, import an audio reference, or guide with MIDI • Arrange Intro, Verse, Chorus, Bridge, and Outro sections • Shape genre, lead, bass, texture, drums, tempo, temperature, and CFG • Record and share stereo 48 kHz WAV files • Core local generation, all three control methods, recording, and WAV sharing are free

Privacy: prompts, audio, MIDI, and files stay on device during generation and are not sent for cloud inference. Pseudonymous product analytics and crash diagnostics use PostHog EU by default; they exclude prompts, audio, MIDI, file data, prices, and transaction IDs and can be disabled in Tools > More. No tracking.

MRT2 Pro is an optional auto-renewable subscription. It unlocks extra performance scenes and separate MIDI and drum CFG controls. Monthly and annual plans provide the same Pro access; eligible users may receive a 7-day free trial of the annual plan. App Store displays price and eligibility before purchase.

Model attribution: Magenta RealTime 2 © Google LLC. Code: Apache 2.0. Model weights: CC BY 4.0.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/