A 2024 paper about “texting” this composer analyzed difficulties in assembling a digital edition of his music. A descending theme in Handel’s Concerto Grosso No. 3 transposes and inverts a piece by this composer, whose subject inspired Amy Beach’s Fantasia Fugata. An A-minor sonata by this composer is part of his “Flamenco” sonatas, which often feature guitar-like rhythms. Those pieces were written while this composer spent 28 years in (*) Spain teaching the Infanta Maria Barbara. The Kirkpatrick Catalog was the first chronological collection of a genre by this composer, which features a G-minor piece that bookends his Essercizi (“ess-air-CHEET-see”). That piece by this composer was apocryphally inspired by his cat walking on his (-5[1])harpsichord. For 10 points, name this Italian Baroque composer of 555 keyboard sonatas. ■END■ (10[1])