Diminished Chords.

What are they? When and where can you use them?

When you are studying basic music theory on your guitar, you will eventually come across something called the “diminished” or “diminished 7th”, or maybe even the “half-diminished” chord. What are they? Why do they exist? Why do we need them in music? How often are they used?

If you search Google, you may find the following explanation: “Diminished chords