Neapolitan chord

A neapolitan chord is a special combination of three notes that sound really nice together in music. It's named after a city called Naples in Italy, where lots of musicians used this kind of chord in their music.

To make a neapolitan chord, you start with a regular major chord. For example, let's use the key of C major. The major chord in that key is made up of three notes: C, E, and G.

But now we're going to change one of those notes. Instead of using the normal third note in the C major scale, which is E, we're going to use a different note that's one half-step lower. That means we're going to use the note E-flat instead of E.

So now our neapolitan chord is made up of C, E-flat, and G. It sounds different than the regular C major chord because of that one changed note. It has a more "emotional" or "mournful" sound to it, which is why composers like to use it in sad or serious music.

Overall, a neapolitan chord is a special combination of notes that creates a unique sound in music. It's named after a city in Italy where lots of musicians used it, and it's made by changing one note in a regular major chord.