aplaymidi --version (return code: 0)
aplaymidi version 1.1.0
aplaymidi --help (return code: 0)
Usage: aplaymidi -p client:port[,...] [-d delay] midifile ...
-h, --help this help
-V, --version print current version
-l, --list list all possible output ports
-p, --port=client:port,... set port(s) to play to
-d, --delay=seconds delay after song ends