Schwartzkopf (Schwartzkopff), Theodor
Pièces à 3 Viola di Gamba. col Basso Continuo for 3 violas da gamba and basso continuo (violone and harpsichord) in A minor
D-ROu Mus. saec. XVIII 58/16
Edition Baroque
The three violas da gamba are noted in the French violin clef, alto clef and bass clef; this seems to indicate one soprano viola and two bass viols, even if soprano, tenor and bass viol is theoretically possible as well.