Trio for Two Violins and Viola da Gamba

Arranged for two treble viols and bass viol. Score and parts.

Composer Players Instrument Notation Period
Bach, J.S. (1685-1750) trio viol Standard Baroque

I found the score on as posted by Gunther Morche in 2009 from "an unknown manuscript." There seems to me no question but that it is by J.S. Bach, but I can find no further information about it. Even more maddening is that I thought that I instantly recognized as a movement from a Bach mass or oratorio but I cannot find it anywhere.

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