Musk MIDI Player: Your instant MIDI player - just add sounds and MIDI files!

* Load any MIDI file and sound library (a small General MIDI sound font is included)
* You can search the web for MIDI files and download.
* Play MIDI files up to 8 times slower or faster
* Transpose MIDI files.
* Follow the MIDI notes on the keyboard and distinguish different MIDI channels
* Read along the lyrics
* Let the app speak the lyrics during playback
* Let the app announce the bar and beat numbers. So you can easier follow the notes in a printed score.
* Mute or solo tracks or use them to navigate
* Use automatic sound switching or customize the sound associated with each MIDI channel.
* Mix with the original sound.

Integrated web search:
* Use the built-in web browser to search for MIDI files on the web.
* The browser highlights MIDI (.mid, .midi) and Karaoke (.kar) links.
* Downloaded files play back immediately.

* Jump to a specific position using a slider
* To jump back to that position using the repeat button
* Jump to the position of certain meta-events (lyrics, markers, time signature, key signature and tempo changes)

Supported file formats and extensions:
* MIDI (mid, midi)
* MIDI karaoke (kar)
* Sound fonts (sf2)
* Downloadable Sounds (dls)
* Logic Pro EXS-24 instrument files (exs)
* Audio Unit Presets (aupreset)
* Zip files (zip)

Importing files via:
* ITunes: transmission via Mac or PC
* ICloud: synchronizes the data on all your Apple devices. (Network connection required)
* Other Apps from the manufacturer this app: All of his apps access to the same iCloud directory. (No network connection required)
* Safari: search for a website that offers SoundFonts. Click on the file. Wait until it is downloaded. Then select this app in the "Open In" dialog.
* Mail: Select the attachment and select this app in the "Open In" dialog.
* Other apps: use the "Open In" dialog. (Dropbox, Google Drive, SkyDrive)

Inter-App-Audio, Audiobus and Core-MIDI support:
You can use the audio output of this app in other apps:
* Record the mixed-down audio output in Garageband, AudioShare or other apps.
* Add sound effects in GarageBand, VoiceSynth or other apps.
* Use this App as a MIDI-Generator in Audiobus or in apps that can receive Core-MIDI notes.

* Speech output can not be sent to other apps.
* Which app combinations are possible depends on Your hardware and Your sound fonts.
* Playing MIDI files with many notes per second can push older devices to their limits. When you hear a scraping noise, try lowering the playback rate.

Have fun!

What’s New

Version 2.5

Audiobus 3 and Core-MIDI support.
iOS 13 support and bug fixes.
Dark mode.

Ratings and Reviews

4.0 out of 5
1 Rating

1 Rating

cmruko ,

Fills a need in iOS music making

4.5 Stars. I bought this only after the recent update because IAA, AB3, and Core-Midi support was added. I can now easily load one midi file or more into an AUM or AB3 session to drive another synth or even record the midi output. There are midi workstations out there but sometimes I just want to use a single midi file i created or downloaded to use in an AUM session and this fills that need perfectly. If it was AUV3 it be 5 stars. Great update. Really like the App, and glad I purchased.

SsdoesMC ,

Very nice

This is the first app I can find that can play midi files in their true glory. The only problem is that I don't know how to install other sound fonts. Other that that, very nice!

jamiedtunes ,

Wonderful app, but can you set to 1 single keyboard to view?

I use this app a lot to learn songs. Is there a way to view only 1 long keyboard to see triggered notes? My eyeballs get quite a workout. Thanks!

Developer Response ,

Thanks for the nice review. The problem with one keyboard is that it would be very small because we must divide the screen width by the number of keys. Please get in touch at


Joerg Garbers
34.7 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German

Age Rating
Unrestricted Web Access


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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