When, as a child (1764-65), Mozart was on tour in London, he became acquainted with Bach's Op.5. The young Mozart so admired "the London Bach" that he adapted Sonatas Nos. 2, 3 and 4 as keyboard concertos.
Wolfgang Amadeus Mozart (1756-1791) - Concerto in E flat, KV 107 No.3 after J. C. Bach, Sonata Op.5 No.4
-Condutor and harpsichord: Ton Koopman
-Amsterdam Baroque Orchestra
00:01 - I.Allegro
05:07 - II.Allegretto (Rondeaux)
Johann Christian Bach (1735-1782) - Sonata in E flat major, Op.5 No.4, W.A4
-Clavichord: Susan Alexander-Max
09:44 - I. Allegro
17:43 - II. Allegretto (Rondeaux)