Interesting project and lots of good content on that site. If anyone is looking for a /much/ /much/ easier way to do this, try pi musicbox. Its the first project I suggest for people new to rpi because its so easy and has great results. I've had an rpi with musicbox for years and use it almost every day. Love it.
Ha, I just threw together a little project to turn my CHIP into a headless jukebox. What funny timing that I was working on this out of boredom/an excuse to actually use my CHIP and this is like 8th post on Pi/CHIP jukeboxes that's come across various feeds.
Pianobar really is a great application, and their thought to use a FIFO file as a command interface makes it incredibly easy to put a display on.
In case anyone's interested in a Websocket based front end for this[0], I built it with HTML and Node.js. There's an install script that should probably get this up and running on a Debian Jessie system in one fell swoop, but YMMV.
Also, I added a library for GPIO commands with the intent of taking it past a breadboard and putting a TFT and some tactile inputs on it.
Sadly the project hadn't seen an update in a long while (entirely my fault but you know, time...) so if the current aging release doesn't suit then I strongly recommend trying vanilla Mopidy. It's harder for a very new user to get going but it's less buggy.
Hey Dave - Kyle here. Awesome to see Patiobar used! Looks like a lot of the steps to get it all working were related to Patiobar. I've been meaning to add a 'setup' script to the repo for a while now which does the `npm` and `mkfifo`, creates a default pianobar config (if one doesn't already exist), fixes the TLS fingerprint, etc. If you're interested, feel free to message me.
Kyle, thanks for your excellent work making this project possible! A setup script would be a great bonus to automate the Patiobar aspects. Feel free to message me on Twitter (@thisDaveJ) so we can discuss since I don't know how to get in touch with you.
http://www.pimusicbox.com/