Ableton is a music software company that developed Ableton Live (a DAW for macOS and Windows), software instruments, sample libraries and hardware controllers.
However there are several connections with IOS music making:
From the Ableton Link Documentation: <html>
<p>Ableton Link is a technology that synchronizes musical beat, tempo, phase, and start/stop commands across multiple applications running on one or more devices.</p> <p>Applications on devices connected to a local network discover each other automatically and form a musical session in which each participant can perform independently: anyone can start or stop while still staying in time. Anyone can change the tempo, the others will follow. Anyone can join or leave without disrupting the session.</p>
</html>
There more than 150 IOS apps supporting the link sync standard.
You can find a Link-enabled Products List at Abletons website. The app types range from audio mixers, recorders, sequencers, drum maschines, loopers to synthesizers.
The Ableton Link Apps List on the Synthyfrog website lists about 180 apps with link support.
Copied over from InfoCheck's AB Forum Knowledgebase Thread
The ALS file format is an XML file format packed with zip compression that can contain
for multiple instrument tracks and the master track
The following table contains a list of apps capable of exporting ALS, the types of data thee files contain and what file extension is used.
Apps with ALS Export | Midi | Samples | Filetype | Info |
---|---|---|---|---|
Ableton Note | ✔ | ✔ | project in .ablbundle format introduced in Live 11.2.5 | Sharing through airdrop or Ableton Cloud |
Auxy Studio | ✔ | ✔ | ? | |
BeatHawk | ✘ | ✔ | .zip with project.als and project-Lite.als | |
BlocsWave | ✘ | ✔ | .zip with project.als | |
EG Pulse | ✔ | ✔ | ? | |
Elastic Drums | ✘ | ✔ | .zip with project.als and project-Lite.als | |
Groovebox | ✔ | ✘ | ? | |
GR-16 Grooverider | ✔ | ✔ | ? | |
Korg Electribe Wave | ✔ | ✔ | ? | |
Korg Gadget | ✔ | ✘ | .als (gzip-packed !) with project als-file without extension | shared through Dropbox |
Korg iKaossilator | ✘ | ✔ | ? | |
Koala Sampler | ✔ | ✔ | ? | |
Loopseque 8 | ✔ | ✔ | ? | |
Patterning 1 | ✔ | ✔ | .zip with project.als and project-Lite.als | Midi only for track #1 |
Patterning 2 | ✘ | ✔ | .zip with project.als and project-Lite.als | |
Triq Traq | ✔ | ✔ | ? |
The Ableton Live website contains a list with some more IOS apps capable of exporting ALS.
Using the Pythonista IOS python interpreter and a python script it is possible to convert the midi of the the exported ALS file into a MIDI file containing the exported tracks directly on the IOS device.