Music Check
Johannes Loeffler Music iPhoneiPadiPod touch
Music Check is a free Music app for iPhone and iPad by Johannes Loeffler. Requires iOS 9.0. Updated June 14, 2026.
- Price
- Free
- on the App Store
- Size
- 213 MB
- Age 4+
- Updated
- Jun 14
- 2026 · v4.3
Screenshots
About Music Check
MusicCheck is more than a normal midi controller, with our unique Prism Composer you can systematically create or modify a melody in a 3-step process: 1. Specify chords allowed in your melody. 2. Choose a rhythmic pattern for your melody. 3. Select groups of notes you want to vary. MusicCheck runs through all possibilities, for example with 10 chords and 6 groups there are a million different possibilities!!!!!! We use a flexible prism coloured graph representation of all the different possibilities. You can further configure the possible variations by restricting groups to certain chords. Save and load Midi projects and extract the different chords with the Prism-Composer or connect your Midi Keyboard and record new songs. This mobile Midi-studio is able to load SF2 and DLS SoundFonts or you can start right away with some built-in instruments.
What’s new
Version 4.3 · Updated June 14, 2026
New design, removed Turntable feature.
Play today's Queens puzzle
One queen in every row, column and color. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
App privacy
The developer, Johannes Loeffler, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Music Check
Looking for apps like Music Check? Here are 6 similar apps on the App Store. The highest rated is Callback Freeverb (5.0/5), and 5 of the 6 are free to download.
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MIDI Pro
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Callback Freeverb
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JamKoo - Let's Perform Music!
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Isomorphic Keyboard
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M2DX
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iSymphonic Orchestra
3.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Music Check | – | Free | June 14, 2026 | |
| MIDI Pro | – | Free | Oct 8, 2026 | Compare |
| Callback Freeverb | 5.0 / 5 (1) | Free | Jun 4, 2026 | Compare |
| JamKoo - Let's Perform Music! | 4.4 / 5 (38) | Free | Nov 6, 2024 | Compare |
| Isomorphic Keyboard | 3.5 / 5 (4) | Free | Sep 9, 2024 | Compare |
| M2DX | 4.0 / 5 (4) | Free | Oct 8, 2026 | Compare |
| iSymphonic Orchestra | 3.8 / 5 (103) | 9.99 USD | Jan 19, 2026 | Compare |
Compare Music Check with the top alternatives: ratings, updates, ASO score and keyword gaps →