I didn't get it to work (from MMC card) either. Tried to use a shell to make it work, but it wasn't that easy. I will give it a new try another day. Perhaps this log will help somebody spot the problem:
Code:
root@ereader:/media/card/music# /mnt/card/mpd/bin/mpc add "Daytime TV Theme.mp3"
adding: Daytime TV Theme.mp3
root@ereader:/media/card/music# /mnt/card/mpd/bin/mpc add "Morning Snowflake.mp3"
adding: Morning Snowflake.mp3
root@ereader:/media/card/music# /mnt/card/mpd/bin/mpc playlist
>1) Kevin MacLeod - Daytime TV Theme
2) Morning Snowflake.mp3
root@ereader:/media/card/music# /mnt/card/mpd/bin/mpc play
error: connection closed
root@ereader:/media/card/music# /mnt/card/mpd/bin/mpc play
MPD_HOST and/or MPD_PORT environment variables are not set
error: problems getting a response from "localhost" on port 6600 : Connection refused
root@ereader:/media/card/music#
But if this works, it looks just like what I need! Background music while reading...