Here, the melody is played by the piano in single-note lines. This approach involves emphasizing individual notes sequentially, distinct from block chords, arpeggios, or waltz time. Option d is the correct choice.
Here, the melody is played by the piano in **single-note lines.** Single-note lines involve playing one note at a time, emphasizing the individual notes of the melody. This approach allows for clarity and articulation of the melody without the additional harmonies or textures associated with block chords, arpeggios, or waltz time.
While waltz time typically refers to a specific rhythmic pattern associated with dance, block chords involve playing multiple notes simultaneously, and arpeggios involve playing the notes of a chord in a specific pattern, single-note lines focus on delivering the melody in a straightforward and unembellished manner, highlighting each note individually. In this context, the piano's rendition of the melody is characterized by a sequence of single notes played consecutively, creating a clear and melodic line. So, Option d is the correct choice.