Jetstar Plays Musical Chairs

Low-cost airline carrier Jetstar now allows passengers to carry on musical instruments.
Wait, there are size restrictions – instruments smaller than 85cm (height) x 36cm (width) x 23cm (depth), which weigh less than 10kg, may be included as a customer's carry-on item.
That may mean checking in your computer for the musical inclined.
My own biggest complaint is that all airlines need to ban those oversized backpacks which smack you in the face as anxious passengers getting on board weave down the aisles.
I'm not quite sure about a trumpet to the head though on Jetstar.