Make sure you have a tin whistle tuned in the key of D, (your tin whistle should have the letter D written on it). This is the most common type of tin whistle. If you are unsure about whether your whistle is tuned to D, check with the staff at your local music store. Learn To Play The Irish Tin Whistle (Buch/CD). +. Traditional Clarke Celtic Tin Whistle. +. Tin…