Question

why did the poet say 'the music in my heart' - l bore? from chapter solitary reaper

Answer 1

The poet said the music in my heart' - l bore because the songof that highland lass was so melodious that it echoed in the heart of the poet as he moved forward. It would remain in his heart forever.
hope it helps :)

Answer 2

the poet said that the music was in his heart, because the solitary reaper sang in a very melodious voice which went deep inside the the poet and had touched the core of his heart. though he went by there but the essence , the feeling of the song which she sang was there in his heart. the pain with which she sang could still be felt by him.