Dominant ninth

Alright kiddo, a dominant ninth is like a group of musical notes that we often hear in certain kinds of songs. It's kind of like a special little friend that shows up to the party and makes things more exciting!

When we talk about a dominant ninth, it means we're talking about a specific combination of notes that create a certain sound. These notes are usually part of a chord, which is a group of different notes played together.

The dominant ninth chord is made up of five different notes. The first note is called the root note, and then we add a note three steps above that, then a note five steps above the root, and then a note seven steps above the root. Finally, we add one more note that is two steps above the root (this is why it's called the "ninth" note).

Now, when we play all of these notes together, it creates a sound that is usually pretty loud and "in your face." It's often used in music like jazz or blues, and it's a really cool way to add some extra excitement to a song.

So, next time you hear a song that has a really cool and exciting sound, try listening for the dominant ninth! It might just be the little friend that showed up to make things more fun.