Paul wrote the Rules of Tone over many years after a conversation he had with his father about physics. Essentially, it is a list of 21 rules of instrument making that are particular to PRS and the way we build guitars. The document is now locked away, and serves as a private record of PRS trade secrets written down to ensure that Paul's philosophies and discoveries are never lost or forgotten. Though its title may sound restrictive, the Rules support our quest for tone by encouraging us to constantly refine our craft as builders so that we can make better and better instruments as we learn.
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