Drop d tuning
Matt Bellamy originally performed the guitar parts for New Born using drop D tuning. The low D (sixth string down a tone from E) adds depth and power to the sound, and it also makes playing power chords easier as they can be voiced on a one-finger barre. To get into this tuning simply drop the sixth string down a tone to D. The notes on each of the six strings will now be (D-A-D-G-B-E). This retuning can be done with a chromatic tuner, but it is also good practice to tune the string by ear using the open fourth string as a reference. If your guitar has a floating vibrato unit the whole guitar will go out of tune due to the reduction in string tension. To remedy this issue simply tune all six strings a couple of times with a tuner until the tuning settles down. The drop D tuning has become popular among heavy rock outfits, and is also a common, key component of the riffs of bands like Rage Against The Machine, Soundgarden and King’s X.