Launchpad Tuner

Audio plugin which lets you use a Novation Launchpad as an isomorphic keyboard.

There are three parameters:

• X step - the pitch change going one key across
• Y step - the pitch change going one key up
• Transpose - an overall shift in pitch

The plugin displays the pitch in cents (modulo 1200) for each Launchpad key in a grid.

Builds for Windows, Mac, and Linux are available on the releases page.

Steps and transpose can be entered in:

• Cents:

• EDO steps:

• Ratios:

The Launchpad needs to be in programmer mode or custom mode four (for the Launchpad X). See the Launchpad Programmer's reference manual (pdf).

The plugin acts as an MTS-ESP source so will only work with MTS-ESP compatible synths like Surge XT.

When using Reaper, Launchpad Tuner can either go on its own track or be added at the start of an FX chain with a synth already on it (for me adding Launchpad Tuner to an empty FX chain prevents sound output if I then add a synth).

Build

Assuming all dependencies are installed:

    $ git clone --recurse-submodules https://github.com/narenratan/launchpad_tuner
    $ cd launchpad_tuner
    $ cmake -B build
    $ cmake --build build

See the CI build workflow for the commands to install the dependencies on Mac, Windows, and Linux.