Please read my reason for editing above your edit Black Magic Woman is a Fleetwood Mac original. Medleys shouldn't be credited as a cover according to https://www.setlist.fm/guidelines#setlistMedleys adding an @With, @Info or @Cover results in affecting the whole line, not just the one song If this song was performed exclusively as a medley by Santana this doesn't make it a Santana original since one of the songs was composed by a Fleetwood Mac member and recorded by them https://secondhandsongs.com/performance/12143
Please read my reason for editing above your edit
Black Magic Woman is a Fleetwood Mac original.
Medleys shouldn't be credited as a cover according to https://www.setlist.fm/guidelines#setlistMedleys
adding an @With, @Info or @Cover results in affecting the whole line, not just the one song
If this song was performed exclusively as a medley by Santana this doesn't make it a Santana original since one of the songs was composed by a Fleetwood Mac member and recorded by them
https://secondhandsongs.com/performance/12143