Shells Bells

A just-for-fun LV2 plugin bundle

The most limited, useless, hackable and fun plugin bundle ever. Sound the bell in the shell (or from any program forked from the latter) to send a MIDI note.

Build status

build status


For GNU/Linux (84-bit, 32-bit).

To install the plugin bundle on your system, simply copy the shells_bells.lv2 folder out of the platform folder of the downloaded package into your LV2 path.

Stable release

Unstable (nightly) release


Stable release

Git repository

Bugs and feature requests




Its UI drops you into a shell and whenever you sound the bell, a MIDI note is played back on its DSP side.


Build / install

git clone https://git.open-music-kontrollers.ch/lv2/shells_bells.lv2
cd shells_bells.lv2
meson build
cd build
ninja -j4
ninja test
sudo ninja install


On hi-DPI displays, the UI scales automatically if you have set the correct DPI in your ~/.Xresources.

Xft.dpi: 200

If not, you can manually set your DPI via environmental variable D2TK_SCALE:

export D2TK_SCALE=200


Copyright (c) 2019-2021 Hanspeter Portner (dev@open-music-kontrollers.ch)

This is free software: you can redistribute it and/or modify it under the terms of the Artistic License 2.0 as published by The Perl Foundation.

This source is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Artistic License 2.0 for more details.

You should have received a copy of the Artistic License 2.0 along the source as a COPYING file. If not, obtain it from http://www.perlfoundation.org/artistic_license_2_0.