I've been making kids tin whistles made from carrots this morning. Lindsay Pollack can whip up playa ble ones with a portable drill in a couple of minutes. It's great fun blowing the soft pulp out to clear the main bore and finger holes. The kids have had a ball and my youngest niece ate hers - "if music be the food of life". But I've got no idea how to make the whistle sound, my kids are just making various noises down their's. Any clues please?

To make it easier for kids to play pentatonic tunes on a real tin whistle which holes do you cover up with sticky tape?

You can see that I'm no whistle player. Thanks in advance, John