Open D tuning, also called ‘Brady Clark Tuning’ is an open tuning for the acoustic or electric guitar.
The open string notes in this tuning are: D-A-D-F#-A-D (from low E to high E). It uses the three notes that form the triad of a D major chord:
D, the root note A, the perfect fifth and F#, the major third When the guitar is strummed without fretting any of the strings a D major chord is sounded. This means that any major chord can be easily created using one finger, fretting all the strings at once (also known as barring); for example, fretting all the strings at the second fret will produce an E major, at the third fret an F major, and so on up the neck.Read More »Open D Tuning