what guitar does john petrucci play
John Petrucci: âMy Favorite Guitar Chord Is âThe Alex Lifeson Chordââ. John Petrucci went out for a drive with the folks from Cosmo Music. In the resulting Rockstars in Cars video, shown below, the Dream Theater guitarist talks about his favorite solo to play live, his mix of technical and emotional guitar playing, and more. Best question in the video: âDesert Island Chord: You got one chord you can play forever.