as first argument, it prints the description of this command.
[/description]
+[subcommand fg]
+ purpose = enter command mode
+ [description]
+ In this mode, file name and play time of the current audio file are
+ displayed. Hit CTRL+C or : to switch to input mode.
+ [/description]
+[subcommand next]
+ purpose = load the next file of the playlist
+
+[subcommand prev]
+ purpose = load the previous file of the playlist
+
+[subcommand bg]
+ purpose = enter insert mode
+ [description]
+ Only useful if called in command mode via a key binding. The default
+ key bindings map the colon key to this command, so pressing : in
+ command mode activates insert mode.
+ [/description]