For macOS 10.10 and later only. This applet will assist with swapping, copying, and appending data between two user-chosen tags in selected tracks or tracks in the selected playlist:
Swap - swap data between tags, ex: ARTIST<->COMPOSER
Copy - copy data from one to another tag, ex: ARTIST->
Append - append data from one tag to the end of another, ex: ARTIST->COMPOSER - ARTIST
Prepend - append data from one tag to the beginning of another, ex: ARTIST->ARTIST - COMPOSER
The latter three actions also provide an option to delete the info from the first tag after the copy. Read Me explains all.
This update is free for registered users of v4.x.
Select the Action to perform between the two chosen tags in each selected track.
(via in-app purchase)
Perhaps Also of Interest...
downloaded 11m 57s ago
Remove iTunes tracks disassociated from files
downloaded 15m 37s ago
Prefix each selected track's Song Name with the number of its order in the selection.
downloaded 21m 32s ago
Renumber playlist tracks to play order
downloaded 1h 21m 4s ago
Use tag data to formulate new file name for selected tracks' files
downloaded 1h 31m 12s ago
Locates pairs of track entries pointing to the same file
downloaded 1h 39m 59s ago
Exports and then re-imports selected tracks' artwork