There have been several minor changes to the name of the award over this time: Up to and including 2015, the Grammy was awarded to one or more vocal soloist(s).
Accompanying musicians, orchestras and/or conductors were not eligible for the award.
From 2016, "collaborative artists" (such as solo accompanists, conductors or chamber groups) have also been included.
Accompanying large orchestras or multiple instrumentalists, however, remain ineligible.
[1] Producer(s) and engineer(s) of over 50% of playing time on the recording also receive an award.