The Brahms Waltz in A flat is probably one of the best known of the collection, originally written for a piano duet but later arranged by the composer for solo piano. The mood of this waltz is sweet, gentle and flowing, characterized at the start by a singing, major key melody accompanied by arpeggiated left-hand chords. The top line of the melody will need to be brought out clearly without being obfuscated by the left-hand.