Device Details


Overview

Name | Version: Kasm Rust Emanator Ableton MIDI Generative Tool 1.12
Author: kevleyski
Device Type: MIDI Generator
Description: Emanator, generates complex MIDI note/velocity sequences with Rust code!

This Ableton Live 12.2 MIDI Generator device was built with source code available here:
https://maxforlive.com/library/device/12909/kasm-ableton-wasm-rust-source-code-example

This is the Ableton MIDI Generator version of the Kasm Emanator - it's the same Rust code but generates Ableton Note data instead of pushing to the MIDI output

!! NOTE: you need the latest Ableton 12.2 for this as it uses the new V8 jsinterp from Max9 !!

Kasm is WebAssembly so you can develop and test things in web browser too, try it out here:
https://pyrmontbrewery.com/kasm


For the enquisitive the Kasm SDK abstracts the Max4Live bang calls into serde JSON to generate the Ableton Notes dictionary...


// Clear any existing notes in the collection
ABLETON_NOTES_COLLECTION.write().unwrap().clear();

// Call bang which will now populate the notes collection instead of sending to outlets
bang(inlet_0_note, inlet_1_semitone, inlet_2_velocity, inlet_3_enc1, inlet_4_enc2, inlet_5_selector);

// Collect all the notes that were added during the bang() call
let collected_notes = ABLETON_NOTES_COLLECTION.read().unwrap().clone();

// Reset mode back to Max4Live MIDI output for next time
*KASM_ABLETON_MODE.write().unwrap() = KasmAbletonMode::Max4LiveMIDIOutput;

// Return the collected notes as an Ableton MIDI Generator dictionary
if collected_notes.is_empty() {
JsValue::NULL
} else {
serde_wasm_bindgen::to_value(&Notes { notes: collected_notes }).unwrap_or_else(|err| {
post!(&format!("Serialization error: {}", err));
JsValue::NULL
})
}



...

full source code is here https://maxforlive.com/library/device/12909/kasm-rust-ableton-wasm-source-code

Details

Live Version Used: 12.2
Max Version Used: 9.0
Date Added: Jul 17 2025 07:51:08
Date Last Updated: Jul 29 2025 00:57:22
Downloads: 178
License: None
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Files

Device File: Kasm Emanator Generator.amxd
 


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