Cacophony means a harsh, discordant mixture of sound that is annoying or irritating. A combination of sounds that is not in harmony.
The words that form the clue to the meaning of cacophony are:
1) blare, battered, trumpet
2) smash, cymbals
3) anguished, screech, poorly-played saxophone
Trumpet, cymbals, and saxophone are all musical instruments. If these instruments were in very good condition and were played well, then the sounds they would have produced will be harmonious.
