lmms

LMMS is an open-source cross-platform digital audio workstation designed for music production, featuring an advanced Piano Roll, Beat Sequencer, and Mixer for composing, arranging, and mixing music. It supports over 15 synthesizer plugins by default, along with VST2 and SoundFont2, providing extensive compatibility for various music production needs. Notable features include user-defined track-based automation, unlimited mixer channels, and comprehensive MIDI support for seamless integration with other music tools.