What is what key is a guitar in?

A guitar can be played in many different keys, depending on the tuning of the guitar and the chords or notes being played. The most common guitar tuning is standard tuning, where the strings are tuned to EADGBE from low to high. In this tuning, the guitar is commonly played in the keys of E, A, D, G, C, and their relative minors.

Guitars can also be tuned to different open tunings, where the strings are tuned to form a specific chord when strummed open. Open tunings allow for different chord voicings and can create unique sounds and textures. Some popular open tunings include open D, open G, and open C.

Additionally, guitars can be capoed to change the key that is being played. A capo is a device that is clamped onto the fretboard of the guitar, allowing the guitarist to change the pitch of the strings without changing the tuning of the guitar. This allows for playing in higher keys without having to learn new chord shapes.

Overall, the key that a guitar is played in depends on the tuning of the guitar, the chords or notes being played, and the skill level and preferences of the guitarist.