The sound of favourite music round the corner (4)
I believe the answer is:
plop
'the sound' is the definition.
(plop is a kind of sound)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for plop that I've seen before include "Sound of a stone landing in water" , "Noise of a small object dropping into water" , "Report making little splash" , "Sound of a stone hitting water" , "Sound of object falling into water without a splash" .)