Question

Which lines from "The Weary Blues" suggest that the speaker is impressed by the musician?
Down on Lenox Avenue the other night
By the dull pale pallor of an old gas light
With his ebony hands on each ivory key
He made that poor piano moan with melody.
In a deep voice with a melancholy tone
Thump, thump, thump, went his foot on the floor.

Answer 1

The most telling lines are lines 3–4:
"With his ebony hands on each ivory key / He made that poor piano moan with melody."
These praise his touch and skill (the piano is personified as "moan[ing]" from the music). Lines 5–6 — "In a deep voice with a melancholy tone / Thump, thump, thump, went his foot on the floor." — also show the speaker’s admiration by emphasizing the musician’s powerful, expressive voice and rhythmic intensity.