Ableton already has Max for Live, which allows users to build MIDI effects, synths, and samplers for its digital audio workstation (DAW). But now with its Extensions SDK, features can be added to Ableton Live with common JavaScript. Where Max is largely limited to MIDI and audio processing, Extensions can touch almost any part of the DAW simply by right-clicking within your Live set.

The company provides a handful of example extensions that include the ability to bulk rename tracks, sketch out song arrangements, and slice up samples. The idea is that extensions can simplify tedious tasks, provide creative sparks, or even connect Live to other tools. Someone even managed to get Ableton Live running Doom.

One, for example, called Arrangement Helper allows you to lay out your song without having to manually copy and paste a bunch of different audio or MIDI clips. You just set the order for your verse, chorus, bridge, et cetera, choose a number of bars for each, and then hit create, and it will automatically populate your Live arrangement view with named clips. You can even go back into the Arrangement Helper and reshuffle your song if you want to add a breakdown or move a chorus in front of the first verse.

RNMR is an extension that allows you to batch rename clips. For example, if you’ve just recorded a bunch of tracks, but forgot to rename the channel from the useless default “audio,” you can go in and rename all the clips “lead guitar” and then tack on a “verse,” “chorus,” or “solo” quickly from a single dialog box.

Other examples Ableton provided automatically turned MIDI data into printable music notation for sharing with other musicians, and chopped up a drum loop and rearranged it using open source algorithm BBCut.

The SDK can be downloaded for free from Ableon’s site if you want to start tinkering with Live Extensions. But it’s not enabled in the DAW just yet. Live Suite owners can join the Live 12.4.5 beta program to test it out early, though.