I actually would not mind having a simple database (that is cross platform like SQLite) which would act as a separation layer from the files (and store any tags

I actually would not mind having a simple database (that is cross platform like SQLite) which would act as a separation layer from the files (and store any tags, and minimal meta data)...only because I'm not crazy about any system changing file names on me. Call me old fashioned ;-) That being said, the UI - especially the editor - looks pretty neat. I've seen comments for git-annex, but the lack of a neat gui/browser gives me pause. Can anyone recommend an alternative to Tagspaces but which does not alter filenames...and is of course cross platform (because i work with a couple different machines every day), and is open source?