Curated OER
"Ricercare" from Musical Offering by J.S. Bach
Learners sing pounds or partner songs. They listen for one melody in a polyphonic texture. Afterward, they use a pencil to draw the "shape" of the melody on paper.
Other
Wayne State College: Baroque Early [Based on Grout/palisca, 5th Ed., Ch 9]
These appear to be notes taken from a college lecture and contain considerable information on the Baroque period of music.