ChordA–D–G–C8-string · Standard A quartal chord, four notes · also Am7(add11), no 5th · Open position F♯BEADGBE♭3noteADGCroleR4♭7♭3fret0001fret 1C1C2C3C4C5C6Fourths, stacked on the first note in its name StrumArpeggio