mocp in no gui mode...

Hello,
I have a idea using old computer like mp3 player, start automatically, and managed by cronetab.

If i use mocp, it works fine. But i need something like this:

mocp -S
mocp --play [file]
mocp --stop
mocp --play [catalog]
mocp --stop
mocp --play [file]
etc...
...

How do that? When I try use mocp -p /home/file.mp3 nothing is happens.
Is possible playing music from directory (recursively) ? How add directory (with all subdirectories) to the playlist, save them, and play after?

What I'm doing wrong?

OK, i found:

mocp -S
mocp -a -p [file]
mocp -s
mocp -c
mocp -a -p [directory]
mocp -s
mocp -c
mocp -a -p [file]
...
etc.
after all: mocp -x

Works fine.