Folders display but files don't - SOLVED

[simbun]

I've just tried Neutron Music Player on Android and from a quick look it appears it's asking for a source (assuming you're in 'DIRECTORY SELECTION') so that it can index your music, it doesn't appear to be a UPnP browser.
When making a DIRECTORY SELECTION make sure you choose a location under [folder view] as described in their FAQ.