Ricercar a-Moll

Johann Krieger (1651 – 1735) was a German composer and organist, younger brother of Johann Philipp Krieger. Born in Nürnberg, he worked at Bayreuth, Zeit, and Greiz before settling in Zittau. He was one of the most important keyboard composers of his day, highly esteemed by, among others, George Frideric Handel. A prolific composer of church and secular music, he published several dozen of his works, and others survive in manuscript. However, hundreds more were lost when Zittau was destroyed by fire in 1757 during the Seven Years' War.
(source: Wikipedia)

The published collection Anmuthige Clavier-übung (1698) contains preludes, fugues, ricercars, toccatas and other works. I picked a Ricercar from this collection, only using a beautiful flute of this organ.