clear-add-play command and playlist "ghost"

Hello, nice player ... Two "problems", though ...

1. In order to clear the playlist, insert a new .m3u playlist and then start playing I have to:

# mocp -c; mocp -a foo.m3u; mocp -p

... which doesn't work nice with Opera or at least I haven't found a way to put the filename in the middle of the command. Thus I was wondering if there is a simple command/config. option that does what I want?

2. If i clear the playlist, why does the player continue using it? E.g. when the current song is finished it doesn't stop, but continiues on the old playlist.