Originale: A Keyboard Anthology First Series, Book 1. "Study in A minor, Op. 137, No. 8". "Study in B minor, Op. 139 No. 98".
Traduzione: Un Keyboard Anthology prima serie, Book 1. "Studio in la minore, op. 137, No. 8". "Study in B minore, op. 139 n ° 98".
