Mimu: Sax Practice & Record

Mimu: Sax Practice & Record

Record, Listen, Repeat.

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Released
August 22, 2026
Updated
November 10, 2026
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About

Play along with the backing CD from your method book or with Apple Music songs, record yourself, and listen back right away. No computer or audio interface needed: a sax practice app that does it all on your iPhone. Why I made it Recording along with a backing track on an iPhone never gave me a good balance between the track and my sax, but setting up a computer and audio interface for every practice was a hassle. So I built Mimu to make recording and listening back quick and easy. How to use 1. Choose a backing track (imported CD audio, your Music library, Apple Music songs, or the metronome) 2. Record while listening to the backing through earphones (Bluetooth or wired) 3. Listen back with the backing track. Volume balance and timing are adjusted automatically, and you can fine-tune them by hand Key Features - Record along with a backing track Import MP3 files, songs from your Music library, or audio-only MP4 files as a backing track, and record your performance right alongside it. * Apple Music streaming-only tracks and DRM-protected files can't be imported as files. Use "Practice and record with Apple Music songs" below instead. - Practice and record with Apple Music songs Tap "+" in the backing library and choose "Find on Apple Music" to find and add songs, then practice and record along with your favorites. Change the playback speed, practice an A-B range, and when recording play the range once or on repeat. Only your own playing is saved — never the song itself. * An Apple Music subscription is required to play songs as a backing track (searching, adding and 30-second previews work without one). Transposition, EQ and reverb don't apply to the Apple Music song itself. - Listen back with the original Apple Music song Recordings made over Apple Music songs play back together with the original in the recording list, mini player and review screen. Switch to "your sound only" anytime, and use reverb and EQ on your own sound. Exporting and sharing include your playing only. - Keep your backing library tidy Filter by "All / Files / Music Library / Apple Music" and sort by date added or title to find songs faster. - Practice with a metronome Record your practice with a metronome even without a backing track. Fine-tune the BPM in increments of 1. - Tuner with transposition Open the tuner from the "Tuner" button on the recording screen to tune up before you practice. Set a transposition (for tenor sax, alto sax and more) to see note names as written in your sheet music. - Sound and timing adjustments in preview Add natural reverb when reviewing your recording. If the timing is off, you can manually correct it right from the review screen. - Automatic gain correction Acoustic instruments often record too quietly — Mimu automatically adjusts the volume to a comfortable listening level. - Practice mode & loop playback Loop just the phrase you're working on and repeat it as many times as you need. Move the A-B range with the thick bar and handles, and Mimu remembers the range for each song. - Favorites & rename Name and organize your recordings, and star your favorites so you can find them anytime. - Mimu Pro (in-app purchase) Unlock unlimited saved recordings and a 3-band EQ to fine-tune the low, mid, and high frequencies. Recordings made over Apple Music songs count toward the free recording limit. Mimu is a practice partner for anyone who loves playing an instrument and wants to get better.
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What's New in Mimu

2.0.0

November 10, 2026

- You can now use Apple Music songs as backing tracks. Tap "+" in the backing library, choose "Find on Apple Music", and add songs to practice or record with (an Apple Music subscription is required for full playback; 30-second previews work without one) - When you record over an Apple Music song, only your own playing is saved. Listen back in the recording list, mini player, zoomed waveform and review screen with the original Apple Music song played alongside, or switch to your sound only. Export and sharing include your sound only - When listening back to takes recorded over Apple Music songs, you can now fine-tune the timing against the original with the ⏱ button. Mimu remembers the value separately for the speaker, wired headphones and Bluetooth (also adjustable in Settings) - Sync offset on the preview screen after recording is now a ⏱ button, and your change also becomes the starting value for your next recordings. You can review and change the sync offset for backing tracks, the metronome and Apple Music (per output) under "Sync Offset" in Settings - Apple Music songs also support playback speed and A-B range practice. When recording, you can play the A-B range once or on repeat. Mimu remembers the A-B range for each song (audio files too) - A-B range is now set with a thick bar and draggable handles (also for audio files) - The backing library now has "All / Files / Music Library / Apple Music" filters and four sort orders - Songs imported from your Music library now show their artwork, and delete confirmations are now consistent - Fixed the microphone preview starting when you returned to the app while on another tab - Improved timing when recording with audio file backing tracks or the metronome. Mimu now measures the start of each take and aligns it automatically - With this improvement, the manual offset in Settings is reset to 0. Set it again if you still need it - You can now choose which mic to record with when a wired external mic (earphones with a mic, a USB-C mic, etc.) is connected. You can also switch between "Built-in mic / External mic" on the recording screen (not while recording). If you plug or unplug a mic while recording, recording stops and you can keep or discard what was recorded - Other minor bug fixes

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Subscriptions & In-App Purchases

$5.99

Mimu Pro

Unlimited saved recordings + 3-band EQ