Everyone knows Mariah Carey is one of the greatest WHISTLE register singers but Sophie Morelli is killing it too! 🔥 6 STEPS to find YOUR WHISTLE REGISTER! 💯 1. First, take a deep breath and stop mid-breath. In other words, “close” your throat in middle of the INHALE. 2. Keeping your throat “closed,” slowly try to push a bit of air through. You’re on the right track if you produce a whimpering or squeaking sound. 3. Repeat the above exercise until you can produce a whistle note. Remember not to