Definition: west African harp lute, popular in Gambia and Senegal. It has a skin stretched across a large gourd, a wooden neck and gut or nylon fishwire strings stretched across a tall bridge. Played somewhat like a harp. Read the full Harps FAQ Page.
Whistles with a cylindrical metal tube and a plastic mouthpiece tend to give a bright sound and are easy blowing. They can't be played as hard as an all metal alloy whistle.