Wind Instrument Puns

Doing a crossword, I asked for a four letter word meaning 'wind instrument':

Mum: Oboe

Dad: Anus

Edit: improved formatting.

My wife plays violin and her first rehearsal with a new orchestra is near. She had access to an electronic copy of the music, but wondered whether the orchestra would distribute paper copies at the rehearsal. For orchestras, the section leaders decide when everyone's bows will be moving up vs. down and annotate the music accordingly. Copies of the annotated music are distributed to the players. As a trumpet player who's never needed that kind of annotation, I've always been able to use the originals.

Wife: "String players never play from the originals because we have bowings."

Me: "And wind players have Airbuses!"

Wife: "That joke was just plane awful."