Piano Sonatas No. 4 + 5 - Hummel, Johann Nepomuk, 1778-1837; Cattarino, Alexander, 1940- (Bratislava : Diskant, 1995)
Sonata No. 4 in C major, Op. 38 -- Sonata No. 5 in F sharp minor, Op. 81
Alexander Gattarino