TomHoward on Instagram: "Did you know EVH often tuned his guitar to suit 'A shape' chords? If you play a standard-tuned guitar, you'll notice an open A chord will sound a bit janky, because the 3rd of the chord (C#) clashes against the other notes. Eddie figured out that you could fix this common issue by flattening the B-string slightly. Many of Van Halen's hits feature these A shape triads, and notice how they all sound extra sweet? When Steve Vai first heard Runnin' with the Devil, he was mos