−h

Show command help and exit;

−q

Quiet mode. No messages are displayed.

−r

Recurse into directories, instead of ignoring them.

−v

Display version information and exit.

−z

Play files in random order.

−Z

Play the files randomly and endlessly.

−l

Loop. −z −l differs from −Z in that −z −l will randomize, play through the song list (without repetition) in random order once, and repeat the songs in that order over and over; −Z will randomly play the songs, without any order, and will possibly play a song right after itself.

−i

Ignore extension case.

−L

List files and exit.

−T

Start a task that handle commands, only one command supported : quit, using q or Q will quit the application at the end of the current song.

−D

Set music123 not to delay between songs. (May make music123 harder to kill).

−d

Customize the time music123 delays between songs. −d takes one argument, expressed in seconds, which may have a fractional part.

−@

Play the files listed in the mandatory argument of −@. Other files can be added on the command line, and this option can be given several times. Note that music123 doesn’t yet play URLs.

−−

End option list.