AUv3 Midi sequence generator which generates musical evolving sequences that you can further automate or modulate via midi.

A clever algorithm creates a musical sequence which is output as a midi signal which can be used to drive a software synthesiser or a hardware device. Various settings allow the sequence to be constrained to scales and chords, transposed on the fly and also allowed to gently mutate giving an evolving sequence.

All the controls can be modulated or automated via midi.

Needs a AU host like AUM and generates no sound on its own.

"My solution has been to make the equipment unreliable in various ways." - Brian Eno

What’s New

Version 1.27

Knobs weren't updated with new data on load - fixed

Ratings and Reviews

4.4 out of 5
15 Ratings

15 Ratings

vitocorleone123 ,

Promising but a few minor issues out of the gate

Very interesting. Very promising for MIDI random mayhem. A few issues I hope can be fixed:
1) it doesn't fit on an iPhone 8 - and won't scroll horizontal when in full screen mode
2) the dials are hard to use because you have to go in a circle rather than touching and dragging in a straight line
3) I wish I could double tap the dials to manually enter the exact desired value

Toneman182 ,

Good start but still needs polishing

Compact and inexpensive algorithmic sequence generator - note that you need an AUv3 host to use it. I’m having real issues with the knobs (using Nanostudio2) which seem to have a mind of their own - I can’t reliably set any of the knobs, which almost seem to go to random locations when I lift my finger (??!!).

NOTE: I still have the “bad glitchy knobs” problem even with the latest update, rendering the plugin nearly useless - this is such a cool app, but I can’t get in touch with the developer (no help on website). I would also love to know more about how to use the MIDI learn within an AUv3 Host app (like NanoStudio2) as that would make this unbelievably interesting. I have an iPad Pro 12.9 if that helps. Please update this app and I’ll be happy to change to 5 stars!

I’ve also noticed audible differences between the notes you hear and what the rectangular “sequencer” blocks on the UI display. Overall good start to this app, but def needs some polishing. I also agree it would be good to be able to remember the good sequences (like a take-vault) somehow...

Spiteface ,

Now works as advertised

I bought this a while back and the controls were so buggy I couldn’t use the app. Developer has updated and it now works great. Really useful AU. I’ll probably pick up Cality now also.


Pagefall limited
7.9 MB

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2018 Abigail Macfarlane


  • Family Sharing

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

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