What are the different types of frets used on guitars and how do they affect the playability and sound of the instrument?

There are mainly two types of frets used on Guitars: nickel frets and stainless steel frets. Nickel frets are softer and wear down faster, which can affect playability and intonation over time. Stainless steel frets are more durable and maintain their shape longer, resulting in better playability and a brighter tone. The choice of fret material can impact the feel and sound of the guitar.