Best answer by Stanley_4
These days I use a Raspberry Pi (tiny under $50 computer) and an add-on USB drive to hold my music. An external hard drive, older spare SSD or even a big thumb drive will work for music storage on a Pi.
I posted some stuff on using a PI somewhere around here recently. Once set up all you need connected is the 5 volt power or if you want it hard-wired add an Ethernet cable. You can access it over VNC for anything you need once it is initially set up.