Apple Music search criteria

Am I using the exact criteria to get only the Spanish flamenco guitarist? Seems like there are three artists resulting from this search, yet they all seem to be under the umbrella of the flamenco guitarist. These don't all seem to be collaborative works. Are they derivative?

Search result screencap:

Regardless wanted to be sure I was getting all Apple Music has to offer on Carlos Montoya, the Spanish gypsy flamenco artist.