Which sentence uses "poised at the piano" correctly?

a;
Poised at the piano, Elena captivated the audience with the first few notes of her performance.
b:
Poised at the piano, the first few notes of Elena's performance captivated the audience.
c:
Poised at the piano, the audience watched as Elena played the first few notes.
d:
Elena captivated the audience poised at the piano.