Can you play a flute with a front gap in your teeth?

Of course! In fact I did for about three years. But if you do have a gap in your teeth I suggest seeing the orthodontist. If you do happen to get braces you must mention to your orthodontic that you play a wind instrument. A common type of braces for people who play a wind instrument are called lingual braces. Instead of being glued to the front of your teeth lingual braces are glued to the back, they are a great solution for musicians, however they do cost much more than regular metal braces.