"So I have the classic amateur's technique; I know some very tricky bits and I have large gaping holes"

Bill Bruford's quote is a reflection on his own musical technique. He acknowledges that he has a "traditional amateur's strategy," suggesting that he has a mix of both strengths and weak points. He understands that he understands some "very challenging bits," which indicates that he has a specific level of skill and understanding. However, he also acknowledges that he has "big open holes," suggesting that there are areas of his strategy that he is not as proficient in. This quote is a modest and sincere assessment of his own musical abilities, and it is most likely that he is making every effort to enhance his strategy in order to become a much better artist.