lmms
Free, open source, multiplatform digital audio workstation.
TLDR
Start the GUI
$ lmms
Start the GUI and load external config
$ lmms --config [path/to/config.xml]
Start the GUI and import MIDI or Hydrogen file
$ lmms --import [path/to/midi/or/hydrogen/file]
Start the GUI with a specified window size
$ lmms --geometry [x_size]x[y_size]+[x_offset]+[y_offset]
Dump a .mmpz file
$ lmms dump [path/to/mmpz/file.mmpz]
Render a project file
$ lmms render [path/to/mmpz_or_mmp/file]
Render the individual tracks of a project file
$ lmms rendertracks [path/to/mmpz_or_mmp/file] [path/to/dump/directory]
Render with custom samplerate, format, and as a loop
$ lmms render --samplerate [88200] --format [ogg] --loop --output [path/to/output/file.ogg]