I have a PI 3B+ and the element14 desktop-computer-kit and its expansion board that can turn pi into a desktop pc. I have installed PiCorePlayer 3.50 and it recognises the internal mSata Drive with music and LMS works fine. The desktop board has on/off switch to safely turn the pi on/off and a time clock. This needs an extension for the OS, but I do not know which PiCorePlayer extension to use or if an extension exists for this board?
Peter
Peter