 That was the Berlin Ensemble playing music of Charles Avison from the 18th century, although he based that on the many, in fact, the many hundreds of harpsichord sonatas by Domenico Scarlatti. Concerto Grosso, No. 4 of the 12. Thanks for choosing 88.9 FM KAWC. We are also on the KAWC app and kawc.org, bringing trusted news to Yuma and La Paz counties.