This Ableton tutorial walks through Live 12's built-in tuning library using a vibraphone melody clip, showing how to move beyond standard 12-tone equal temperament and into microtonal territory. The workflow starts by loading the Wendy Carlos tuning system, which immediately shifts both the sound of the instrument and the note names visible in the MIDI editor.
From there, the tutorial covers auditioning several other tuning systems from Live's library, then settling on Wendy Carlos to explore its parameters: reference pitch, the octave and note at which the tuning anchors, and the lowest and highest notes of the active scale range. Live also links out to Ableton's Tuning System website directly from the interface, giving access to deeper documentation.
The bit also shows how to save a modified tuning as a custom preset, and how to set specific track elements to bypass the project's tuning entirely. That bypass option is practical when mixing tuned melodic elements with drums or other material that should stay in standard pitch. Custom tunings can also be imported as .scl files, so any tuning from external libraries or your own work can be brought straight into a session.