iPad Screenshots


The world's first multi-playhead music sequencer.

"How Bach would have made a sequencer." (Create Digital Music)
"A musical feat." (Creator's Project)
"A new approach to sequencing." (XLR8R)
"Next generation music sequencer." (Ask Audio)
"A brilliant concept that has been beautifully realized." (Music App Blog)
"It’s good. So good." (iOS Mars)


FUGUE MACHINE is a tool inspired by composition techniques used in Baroque music and Serialism — e.g. Bach’s canons and fugues, and Schoenberg’s twelve-tone technique. The idea was to design a tool to manipulate a melody’s speed, direction, and pitch, as well as play multiple variations of the melody simultaneously.

As it turned out, the best implementation for this was to reimagine one of the most fundamental building blocks of all music sequencers: the piano roll.


FUGUE MACHINE is the world’s first multi-playhead piano roll. Create a musical sequence and play it back with up to four playheads at once — each at various speeds, directions, and pitches. You see the playheads dance over the music sequence, and hear the complex patterns that emerge.

It’s mesmerizing.

/ Supports Ableton Link, MIDI, AudioBus, Audiobus 3 MIDI, and Inter-App Audio.

What's New

Version 1.4.1

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In some cases, system settings were not saved between sessions. This may have caused the welcome screen to show or midi routings to reset on each launch. Resolved now.

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Just a quick bug fix :]

Also, I'm still hard at work on my new project (13+ months now!). I've never worked on anything for so long... and I'm still super excited about it :] Check my twitter (@alexandernaut) for a short teaser.

Anyway, thanks again for your support, and please let me know if anything comes up.

All the best,

Ratings and Reviews

4.9 out of 5

114 Ratings

114 Ratings

Editors’ Notes

With its streamlined but powerful design, this flexible MIDI sequencer makes it easy to turn your musical dreams into reality. Thanks to an intuitive scrolling interface, placing patterns and creating sophisticated music is a cinch. Gesture-based shortcuts and inspiring built-in patterns get you started quickly, and you can send melodies to other MIDI apps and devices for even more creative options.

Stunning Results with Hardware (updated)


Fugue Machine may very well be the finest, most inspiring music tool on my iPad when it comes to using the iPad to drive external hardware. I haven't used it much to sequence other apps on the iPad, but if you're looking to do something amazing with your outbound hardware synths, this is The One. The latest MIDI implementation is as flexible as you'd want it to be and rock solid (whether it's receiving clock or transmitting it). I'm sending out each track to a variety of MIDI channels, over USB out to a sync box, which passes on MIDI and/or CV/Gate to a 70s analog synth, a modular Eurorack setup, and to a popular keyboard controller. It would take a load of hardware to both handle the sequences and the interfacing, and I'm not really sure anything like this app could be assembled anyway. This is one of the few apps that make me want to buy another iPad, install nothing but Fugue Machine on it, and put it away in a bank vault, "just in case". It's made my collection of 40 years of hardware even more capable of incredible music. 5 stars! (April 3, 2017 Update - Keeps getting better! New system for Pattern Backup and Export works flawlessly... 6 stars!)

Easily a 6 stars out of 5


This is a brilliant instrument. Yes it’s a sequencer, but I see it more as a instrument and a composing tool.

The only wish I have is the ability to see the notes names somewhere. It’s easy to get lost playing it and hit a less than pleasant combo. That would go away in part if we could see the notes names or the chords/scales someplace in the interface.

Another wish would be the ability to play patterns manually, as opposed to having to clutter the screen with not just a menu, but a submenu.

Having 4 to 8 buttons to assign patterns to would rock. Literally. Even if it means squeezing the interface a bit. Maybe an overlay? I am already doing this using the submenu, but it occluded the screen for any other work.

By the way, I have the most fun with it driving my computer midi over WiFi. There is something magical in holding an iPad in your hands and hear sound out of your speakers. Recording the patterns is pretty easy too and the results rival or better dedicated midi arpeggiators. This is simpler and more versatile.

Great job.


Alexander Randon
9.2 MB
Requires iOS 9.0 or later. Compatible with iPad.
Age Rating
Rated 4+
© 2015 Alexander Randon


  • Family Sharing

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

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