The Scottish musical instrument featured in the crossword solutions is the BAGPIPE, which is seven letters long, and pipes, which is five letters long. The BAGPIPE is a wind instrument consisting of one or more musical pipes which are fed continuously by a reservoir of air in a bag. It is an iconic symbol of Scotland and is used in traditional Scottish music. Pipes is a general term for any type of musical instrument that produces sound by the vibration of air through a tube.