MIDI Pro

MIDI Pro

Backings and Composition Ideas

0 ratings
5 reviews
Free
In-App Purchases

Details

Released
March 8, 2023
Updated
November 2, 2026

Features

MIDI Pro video #1 for iPhone
MIDI Pro video #2 for iPhone
MIDI Pro video #3 for iPhone
MIDI Pro screenshot #4 for iPhone
MIDI Pro screenshot #5 for iPhone
MIDI Pro screenshot #6 for iPhone
MIDI Pro screenshot #7 for iPhone
MIDI Pro screenshot #8 for iPhone
MIDI Pro screenshot #9 for iPhone
MIDI Pro screenshot #10 for iPhone
MIDI Pro screenshot #11 for iPhone
MIDI Pro screenshot #12 for iPhone
MIDI Pro screenshot #13 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app generates customizable MIDI sequences for musicians to practice, experiment with musical ideas, and create original compositions. It offers a built-in instrument tuner and allows users to import and play MIDI files.

✓Generates MIDI sequences
✓Customizable percussion and melody tracks
✓Built-in instrument tuner
✓Import and play MIDI files
✓Save and export MIDI compositions
✓Experiment with chord progressions and scales
Show original description
+1

What's New in MIDI Pro

5.2

November 2, 2026

Performance improvements and bug fixes for a smoother music-making experience. New feature: Open and Play MIDI Files You can now open MIDI files directly from Finder on Mac or the Files app on iPhone and iPad. Simply select a MIDI file and open it with MIDI Pro to start playback

More
1

Subscriptions & In-App Purchases

$12.99

Full Access Purchase

All features are available

User reviews

Can’t load a soundfont

Every time I load up a soundfont, it keeps on giving me this error: “Player soundbank preload failed”. I’m thinking it’s because the app seems to be dated.
EDIT: The error code is 10871.

Response from developer

What is the error code reported next to preload failed? Fixing a similar issue in the upcoming release. ( would need error code to see if it the same) Work around: keep the original default font FluidR3_GM.sf2 font an.d then add the new font. Do not delete the default one if you are up to it resetting to default values will reload it. Otherwise it is available on the web. regards

Can’t load a soundfont

Every time I load up a soundfont, it keeps on giving me this error: “Player soundbank preload failed”. I’m thinking it’s because the app seems to be dated.

Response from developer

What is the error code reported next to preload failed? Fixing a similar issue in the upcoming release. ( would need error code to see if it the same) Work around: keep the original default font FluidR3_GM.sf2 font an.d then add the new font. Do not delete the default one if you are up to it resetting to default values will reload it. Otherwise it is available on the web. regards

Good start to great idea for practice app

I paid for the full version of this app because I want to support this developer.

I tried using this app primary to help generate backing parts to practice soloing and accompanying with my primary instruments. The user interface is very simplistic but that doesn’t bother me as much as there’s little guidance to figure out how to use the thing. Pros: - lots of flexibility - many built in progressions - sound fonts library can be exchanged Cons: - synthesized melody and parts are way too busy to be used as backing and often interfere with each other harmonically; I end up muting half of the tracks - acoustic guitar backing parts could strum rhythms - track levels cannot be muted or level adjusted during playback - the animated character is cute but wasted ui space.

Update: Ended up not using this app, deleting it; Chordbot ends being more practical for my needs and at a much lower price tag. Hope you put my $15 to good use!
Show more

Response from developer

We appreciate the feedback. Working on new release and better guidance on the product page. The product support page into were you can ask questions is on the App Store. In the future we will provide that contact information inside the app so that a contact method is easier to find. Regards

Good start to great idea for practice app

I paid for the full version of this app because I want to support this developer. I am using this app primary to help generate backing parts to practice soloing and accompanying with my primary instruments. The user interface is very simplistic but that doesn’t bother me as much as there’s little guidance to figure out how to use the thing.

Pros: - lots of flexibility - many built in progressions - sound fonts library can be exchanged

Cons: - synthesized melody and parts are way too busy to be used as backing and often interfere with each other harmonically; I end up muting half of the tracks - acoustic guitar backing parts could strum rhythms - track levels cannot be muted or level adjusted during playback - the animated character is cute but wasted ui space
Show more

Good start to great idea for practice app

I paid for the full version of this app because I want to support this developer. I am using this app primary to help generate backing parts to practice soloing and accompanying with my primary instruments.

The user interface is very simplistic but that doesn’t bother me as much as there’s little guidance to figure out how to use the thing.

I would have reached out to the developer directly but it looks like a review is the only way to provide feedback at the moment.

Pros:
- lots of flexibility
- many built in progressions
- sound fonts library can be exchanged

Cons:
- synthesized melody and parts are way too busy to be used as backing and often interfere with each other harmonically; I end up muting half of the tracks
- acoustic guitar backing parts could strum rhythms
- the developer cannot be contacted and has no website or forum to ask questions
- track levels cannot be muted or level adjusted during playback
- the animated character is wasted ui space, sorry
Show more

FAQ

What is MIDI Pro?

MIDI Pro is a music application designed to help musicians practice, experiment with musical ideas, and create MIDI sequences. It offers features like customizable backing tracks, a built-in instrument tuner, and the ability to import and play MIDI files.

How does MIDI Pro generate musical ideas?

MIDI Pro combines structured musical rules with randomness to generate unique MIDI sequences based on user preferences for rhythm, key, scale, and chord progression.

Can I use MIDI Pro to practice my instrument?

Yes, MIDI Pro allows you to selectively enable or disable percussion and melody tracks to create backing music for your instrument. The built-in tuner also helps you ensure your instrument is in tune before playing.

What devices does MIDI Pro support?

MIDI Pro is available for iPhone and iPad devices.

Can I save my compositions in MIDI Pro?

Yes, the paid version of MIDI Pro allows you to save generated MIDI files for later use or import them into your Digital Audio Workstation (DAW).

Does MIDI Pro have ads?

No, MIDI Pro does not contain advertisements.

Is MIDI Pro suitable for young children?

MIDI Pro has an age rating of +4, indicating it is generally suitable for children and older users.

How often is MIDI Pro updated?

The latest version of MIDI Pro is 5.2, and it was last updated on November 2, 2026. This suggests a recent update history.