not Voyage linux, but it borrows from Voyage linux as it uses the
voyage-sync init script to setup the read only root environment, I assume that's what you're after if you're not wanting the MPD environment? Anyway, after
the addition of that script and a few other tweaks it diverges and is focuses on adding the WeeWX weather software.
It becomes a terminal based pi - No Gui. If you skip the weewx installation
step you'll have a basic, and minimal, read only Raspian install, obviously no MPD either.
Visit the above link and go to the Wiki linked from their for the full explanation.
And while I'm here Thanks to Voyage Linux for their work - credit where its due.