Hey, singers. I'm Justin Stoney here for page 6 of our Singing Dictionary, Harmonics. First, our fancy definition. Harmonics are frequencies occurring above the fundamental frequency in a predictable pattern of integer multiples of the fundamental. Not mine. But our practical definition is notes that happen above the note that you're singing. Here's a great example of what harmonics look like on a musical instrument playing a single note. And now, here's what they look like when a singer sings this same note. Fascinating. So how can we start to hear harmonics better? Let's break them down. Let's say that we sing this note. When we're singing this note, we are also singing this one. And this. And this. And this. And this. And this. And all of these. Take a listen again. Put that back together. And you get incredible. So why should we care? Well, most of the time when we listen to singers, we're only thinking about the one note we think they're singing. But it's not the note itself, but the notes above that really make things exciting and interesting. As you play with different vowels, different lyrics positions, and different colors in your voice, start to realize that it's not just the note itself that you're changing, but the notes that are above and beyond. So may your harmonics shine and shimmer, and may your singing be defined by joy. Thank you.