LMMS is a digital audio workstation application program that allows music to be produced by arranging samples, synthesizing sounds, playing on a MIDI keyboard, and combining the features of trackers and sequencers.
LMMS is a software to compose music on Mindows, Linux and macOS. The interface allows the user to sequence, compose, mix and automate songs.
A precise Piano Roll Editor allows to fine tune patterns, notes, chords and melodies. LMMS can consolidate instrument tracks using Beat+Bassline Editor. Note playback via MIDI and typing keyboard is also supported along with importing MIDI files and Hydrogen project files.
Have a look at their promotional video to learn more about the LMMS.
LMMS has built-in 64-bit VST and 32-bit VTS bridge instrument support.
It comes with 16 built in synthesizers, including emulations for the Roland TB-303, Commodore 64 SID microchip, Nintendo NES and GameBoy, Yamaha OPL2 chip.
It also includes the ZynAddSubFX software synthesizer which combines several different methods of audio synthesis in order to create sounds.
LMMS offers a drop-in Linux Audio Developer's Simple Plugin API (LADSPA) and VST effect plug-in support.
It also allows the user to tweak the sound waves with a built-in compressor, limiter, delay, reverb, distortion and bass enhancer.
Built-in visualization/spectrum analyzer along with a bundled graphic and parametric equalizers are available to master the perfect song.