"Frank Zappa... was Beethoven for insane rock guys"

In this quote, Scott Ian is comparing the legendary musician Frank Zappa to the classical author Beethoven. He is suggesting that Zappa's impact and influence on the world of rock music was similar to Beethoven's influence on symphonic music. However, Ian adds the word "outrageous" to explain the type of rock musicians that Zappa was like Beethoven for. This could be analyzed as a nod to Zappa's non-traditional and speculative style of music, which frequently pressed the boundaries and challenged standard norms. In general, Ian's quote highlights the immense talent and creativity of Frank Zappa and his substantial contribution to the world of rock music.