Formatting as Track Title (Artist)

[ohrenkino]

see e.g. here:

Replace " / " with ", " except when there is only one " / " or it is the last " / ", then replace with " & "

Then try the following: First (simple) replace all slashes / with a comma. Then try the following "Replace with regular expression": Search string: (.*), (.*) Replace with: $1 & $2 The greadiness will take care that this always happens only to the last comma.

Yet, i wonder why you add the already existing data from ARTIST to TITLE esp. as these 2 pieces of information are not separated by a unique character so that one could split the field easily again.