5 Sonatas for the Piano or the Harpsichord and a Duo for 2 Pianos or 2 Harpsichords - Clementi, Muzio

"Op. Op.1a (Oeuvre 1). Movements: 5 sonatas (actually 4 and 1 fugue) and 1 duet: #Sonata ({{K. Dedicated to: Madame Duvivier"

Instruments piano or harpsichord (Nos.1–5), 2 pianos or 2 harpsichords (No.6)