Prefer to separate albums from singles.
So only shuffle through singles.
oh, well you could always make one directory with singles under music and shuffle that folder with playback range set to "selected range"(meaning the actual folder you're in).
or make a playlist (all you need is generate a .cue with foobar of all the selected songs). but I don't know if there is a limit to the size of a playlist?
anyway you should have ways to do it how you like withing "music" subfolders or outside of it.
Ah so you can choose folder only shuffle. Should have mine by Wednesday next week. If Sony release date is correct.