DADGAD is an alternate guitar tuning that changes the standard tuning of the strings to D-A-D-G-A-D, from the lowest to the highest string. This tuning is popular in folk and acoustic music, particularly in Celtic traditions, as it creates a rich, resonant sound that enhances open chords and fingerstyle playing. Guitarists often use DADGAD to achieve unique chord voicings and melodic lines. It allows for easy access to drone notes, making it ideal for creating atmospheric music. Many renowned guitarists, such as Pierre Bensusan and Martin Simpson, have popularized this tuning in their compositions and performances.