It seems to me that almost all of these ideas could be implemented externally to the empeg and external to emphatic, using a tool that runs on the PC and leverages the Hijack FTP engine and/or the Empeg protocol. It could grab the contents of lrcdb, open the empeg's list of tunes, do comparisons and tagging, then upload the tunes back to the empeg.

Hm. Who here is most qualified to write a program that works with the empeg protocol? Calling Mike S!