Originally Posted by
AJA_
Check-in staff to passenger: "I'm sorry sir but that exceeds the allowable dimensions for cabin bags and even for checked luggage. You cannot take that in the cabin and will have to pay £65 excess baggage fee to check it into the hold. Unfortunately we do not accept cash. All major credit cards accepted. Any chance you would like to leave anything behind?"
Dont worry, its actually a cello so has its own seat.