Have you ever listened to music where the notes sound a little unusual or different from what you're used to hearing? Well, sometimes in music, people use something called "radical harmonies" to create a unique and special sound.
When we talk about harmonies, we're talking about different notes being played at the same time to create a chord. It's like when you play a bunch of keys on a piano at the same time. The combination of notes you hear is a harmony.
Now, when we say "radical harmonies" we mean that the combination of notes being played together might not sound very traditional. It's like when you're coloring with different crayons, and instead of using the regular colors, you use a bunch of different funky colors to create a cool and unique picture.
In music, people use radical harmonies to create songs that sound different from others, and to make a certain mood or feeling. It's like making a different flavor of ice cream from the regular ones you're used to.
Radical harmonies can be used in all kinds of music, from pop to classical. The next time you're listening to music, try to see if you can hear any radical harmonies in the song!