Andrea Gabrieli, uncle and mentor to the unjustly more famous Giovanni, was the first true genius of the Italian keyboard school. Besides an important corpus of vocal music, this organist of San Marco composed complex monothematic ricercars, turning the form into the ancestor of the fugue; as well as brilliant preambula and toccatas, gorgeously ornamented arrangements of madrigals and chansons, and a sparking passamezzo. Glen Wilson performs a selection of these on copies of a 16th-century Italian harpsichord and spinetta.