Max for Live

Device Details


Overview

Name | Version: Latch and Play 0.0.2
Author: swina
Device Type: MIDI Effect
Description: Latch&Play

MIDI device for AbletonLive Standard/Suite with Max4Live

Latch&Play is a powerful MIDI utility designed for Max for Live that allows you to "capture" and hold MIDI notes (latch) while providing flexible options for splitting the keyboard, replacing notes, and transposing output.

Core Features

1. Latch Mode
------------------------------------
The primary function of the device. When enabled, MIDI "Note On" messages are stored and held indefinitely.
Active: Notes are latched and stay on.
Inactive: Notes pass through normally. A Fade Out duration can be applied when disabling Latch to smoothly release held notes.

2. Keyboard Splitting
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- Split your keyboard into two zones for multi-functional playing.
- Split Point: A user-definable MIDI note (default: 48 / C2).
- Lower Zone: Notes played below the split point are processed by the latching logic.
- Upper Zone: Notes played above the split point "Pipe Through" directly to the output without being latched.

3. Note Replacing (Voice Management)
-------------------------------------------
Manage how the device behaves when you exceed the polyphony limit.

- Polyphony Limit (notes input ctrl): Set the maximum number of notes that can be latched simultaneously.
- Note Replace (Replace checkbox): When active, playing a new note after reaching the limit will automatically release the oldest latched note and replace it with the new one (FIFO - First In, First Out).
When is OFF and latched notes are playing all incoming notes are playing normally

5. Transposition
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Adjust the pitch of all outgoing MIDI notes.
Transpose: Shift notes by semitones.
Octave Shift: Quick controls for jumping up or down by 12 semitones.


You can get all the project at:

https://github.com/swina/M4L-Latch-And-Play

Details

Live Version Used: 12.3.6
Max Version Used: 8.6.2
Date Added: Mar 26 2026 09:54:31
Date Last Updated: Mar 27 2026 08:58:22
Downloads: 0
Website: https://swinallen.gumroad.com/l/latchandplay
ⓘ License: AttributionNonCommercialNoDerivatives
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Comments

hi - it's a frozen device, but it is throwing errors, none of the js seems to have been properly included?
Posted on March 26 2026 by wetterberg | Report Issue
Not working with Ableton 12.2.7/MacOS
Posted on March 26 2026 by stevefrances | Report Issue
Sorry for the problem.

Published version 0.0.2 that should fix the problem.
Let me know if any other issue.

Posted on March 27 2026 by swina | Report Issue
Same with 0.0.2 device not working. Seems an interesting idea. Please fix it. Thanks!
Posted on March 27 2026 by stevefrances | Report Issue
If anyone is still having problem you can contact me directly to my email : swina.allen@gmail.com

Please describe the exact problem with the following information.

Ableton Live Standard/Suite version
Max4Live version

Thanks
Posted on March 27 2026 by swina | Report Issue
Since the project is completely opensource you can find all the base code here:

https://github.com/swina/M4L-Latch-And-Play

- Max4Live adv file
- JS latch.js
- amxd files v. 0.0.1 and v. 0.0.2

Posted on March 27 2026 by swina | Report Issue

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