A Set of Progressive Lessons for the Harpsichord, or the Piano Forte Expressly Calculated for the Ease of Beginners - Arnold, Samuel 1740-1802 (London Arnold, 1780)
Dr. Samuel Arnold conducted oratorios at Covent Garden (with Linley, 1786-94) and the Academy of Antient Music (1789-92)
Later (?) ed. by Broderop & Wilkinson: https://s9.imslp.org/files/imglnks/usimg/7/7a/IMSLP75639-PMLP152040-Arnold_Op12.pdf
Keywords: 18th Century (1701-1800); Method; Music education; Keyboard music; London (United Kingdom)