Final answer:
Without additional context, it's impossible to determine who Nitz's favorite guitarist is. Procedural memory is key in mastering complex tasks such as playing the guitar, but the question as asked doesn't provide a definitive answer.
Step-by-step explanation:
The question about “Nitz's favorite guitarist (and master of procedural memory)” doesn't specify a universally acknowledged fact and seems to be based on a personal preference or a specific context that is not provided. In general, a guitarist renowned for exceptional procedural memory would be one who is highly skilled at playing the guitar, demonstrating the ability to perform complex finger movements and chord progressions with ease and precision. Procedural memory is a type of long-term memory that is involved in the mastery of tasks and often is seen in musicians who have practiced their craft extensively. However, without additional context, it is impossible to determine who Nitz's favorite guitarist is.