MusicBox + PiFm with FIFO?

Hi all!
I’m using MusicBox on my RPi0 and it works OK.
But, I’d like it to output all audio to PiFM, GPIO output.
What would be the best way to make this possible?
MusicBox to output audio into FIFO file and calling it with PiFm…? Or?
Any instructions how to do that?
Thank you!

Interesting.

I guess that you need to do some coding in order to connect the gpio pin with alsa. If alsa can use the resource and it can be listed with aplay -l, then mopidy should be able to play the tunes.