A catechism is simply a tool for teaching the fundamentals of the faith. Unlike a creed or confession, a catechism uses questions and answers. Many Protestant confessional traditions, like Lutherans, Presbyterians, and Reformed, have used catechisms for centuries. Initially, most catechisms were intended for children.
I never really grasped how big it was when I initially got 'Alexander'; I thought, 'Ooh, this is exciting,' but after I got home, I looked back and thought, 'That was an incredible experience.' I got to work with some massive names in Hollywood, and I learnt so much, and then it really kind of struck me how life-changing it was.
Initially, I just used the guitar as a prop. I'd pose with it in front of a mirror in my Kiss makeup when I was skipping school. Then I figured out how to play the main riff to Deep Purple's 'Smoke on the Water' on just the E string. Next, my old man showed me how to play barre chords, and that's when things started getting really heavy.