Open G is a guitar tuning where the strings are tuned to the notes G, D, G, B, and D from the lowest to the highest string. This tuning allows for a rich, resonant sound and is often used in various music genres, including blues, rock, and folk. It enables guitarists to play chords and melodies more easily, especially when using slide techniques. In Open G tuning, the guitar is set up to create a G major chord when strummed without pressing any frets. This makes it a popular choice for slide guitar players, as it facilitates smooth transitions between notes. Many famous musicians, such as Muddy Waters and The Rolling Stones, have utilized Open G in their music.