How is music able to move the poet 'to the core'?
Music is able to move the poet 'to the core' because it acts as a therapy when she feels sad or "blue". It deeply resonates with her by harmonising with her inner self and easing the ache of her troubles.
Furthermore, music has the profound power to lift her spirits and provide the strength to pull through difficult times. It serves as a dependable friend when she has no one else, offering comfort and moving her deeply in ways she cannot fully explain.
Explanation
The question asks how music moves the poet to the core. Based on the provided context, specifically the poem extract and the poet's diary, music moves the poet deeply through its therapeutic and supportive qualities. It acts as a therapy for sadness ('feeling blue'), eases emotional pain ('aches'), and lifts her spirits to give her strength. By harmonising with her emotions and being a dependable friend in lonely times, music profoundly impacts her core being.