Description:

Featured MIDI File Player for Linux, Windows, and macOS written in C++,
and using Qt6 and Drumstick2.

The project includes several tools as examples, and among them is the
drumstick-guiplayer utility that leverages the Drumstick::ALSA library,
so it is available only for Linux (because the ALSA sequencer is a linux
only technology).

Some key features:
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* MIDI Output to hardware MIDI ports, or any other Drumstick backend
like soft synths
* Transpose song tonality between -12 and +12 semitones
* Change MIDI volume level (using MIDI CC7)
* Scale song speed between half and double tempo
* Lyrics, Piano Player and MIDI Channels views