Guild Wars 2

I know about the gem store instruments and the bells.
I know for instance the Minstrel legendary makes a harp sound unsheathed. And the war horns make sounds but its not quite musical. Are there any obscure consumables ,items or abilties I might be forgetting?

Also are there any musical sounding abilities in the game. I know the mesmer has musical notes appear under water but thats visual. I am looking for audio.

Any Help would be greatly appreciated.

There is an organ in Caeledon forest….. Can’t really think of anything else. There’s the bells which are consumable. The warbarler from HoT but that sounds like farts.