Is there a way to exclude music from the search list?

Put ‘Local Media Assets’ into top position under
Settings - Server - Agents - Albums - last.fm
and
Settings - Server - Agents - Albums - Plex Premium Music

Then edit your library,
go to the ‘Advanced’ tab
and put a check mark into ‘Use embedded meta tags’

Check the embedded meta tags in your files.
All files must have:
‘Album Artist’ = ‘Dead or Alive’
‘Album Title’ = ‘Sophisticated’
there must be no other info in the ‘Album Title’ meta tag!
‘Disc number’ belongs into its own dedicated tag.

After making sure of the above, perform the Plex Dance
(with music, step 4 can be omitted)