Bubblegum is a free polyphonic pitch-editing plugin for Linux, macOS and Windows that can reportedly move, tune and stretch individual notes, including notes within chords. That makes it a potentially useful corrective-editing tool for producers and engineers working with recorded instruments rather than MIDI.
Synthtopia's report on Bubblegum ↗ (opens in a new tab) describes the software as an app inspired by Melodyne-style editing. In practical terms, the appeal is the ability to address a single problematic note in otherwise usable polyphonic audio: a guitar chord, piano part or layered instrumental recording, for example.
Key Takeaways
- Bubblegum is reported to be free and available for Linux, macOS and Windows.
- Its stated functions include moving, tuning and stretching notes in audio.
- Crucially, it is described as working on individual notes within chords, rather than treating a whole chord as one pitch event.
- This type of editing could help rescue small pitch or timing issues without re-recording an entire instrumental part.
What polyphonic pitch editing changes
Conventional pitch correction is often most straightforward with monophonic material: one vocal line, bass note or lead instrument at a time. Polyphonic editing aims to separate the notes contained in a chord or multi-note recording so they can be adjusted individually.
For a producer, that could mean correcting one sharp note in an acoustic-guitar voicing while leaving the rest untouched, or slightly changing the length and placement of one piano note that is cluttering an arrangement. It may also be useful for cleaning up harmonised recordings, where re-tracking a single note can be slower than making a careful edit.
Timing adjustments are part of the stated feature set too. Stretching an individual note may help tighten a loose chord stab or sustain without forcing the entire clip to follow the same edit. Engineers already using clip-level timing tools may recognise the broader workflow from Pro Tools Elastic Audio warp-marker editing, but the reported point here is note-level editing within polyphonic material.
Potential uses in production and mixing
The most obvious use is repair rather than wholesale transformation. A strong take can still contain a fretboard note that lands a little flat, a chord tone that sustains too long, or a sampled musical phrase that needs minor adjustment to sit against a new key or tempo.
That does not remove the need for judgement. Pitch and time processing can introduce audible artefacts, particularly with dense chords, heavily effected sources or material that already contains distortion and modulation. The useful workflow is likely to be selective: make the smallest possible edit, then audition the part in the full arrangement rather than judging it only in solo.
Vocal editors may also be interested, although the available information does not specify dedicated vocal features or workflow. Producers looking for more general approaches can compare the principles with our guide to pitch correction in Ableton Live: transparent results usually depend as much on restrained edits and listening in context as on the software itself.
What remains unclear
The report establishes the broad capability and platform availability, but it does not provide a developer download page, supported plugin formats, DAW compatibility, system requirements or detailed information about its editing engine. It is therefore too early to assume how Bubblegum will perform with particular sources or whether it will fit every host-based workflow.
For now, Bubblegum is worth watching for producers who want note-by-note control over recorded chords without immediately committing to a paid polyphonic-editing package. Before using it on client work, check the developer's installation and compatibility information when it becomes available, then test it on duplicate audio rather than the only copy of a session file.