not dev, but see related post/thread @ Sonic Analysis - has processed 6 albums in 40 minutes - #73 by TeknoJunky
the analysis data is linked to the media items locations/paths/ID’s in the database, keeping that all together is difficulty.
you are going to be better served by permanently adding/moving your music library to a more capable server. You can leave your videos hosted on RPI, and setup a separate music server on a more appropriately powered PC.
