This document discusses a new material called natural fiber composites (NFC) that can be used for instrument building. NFC is made from natural fibers like cellulose and plastics. It has mechanical properties that are 40% better than traditional wood materials. NFC allows for complex designs that traditional woodworking cannot achieve, opening new possibilities for tone and structure while keeping costs low. Examples of acoustic guitars made from NFC showed excellent tonewood-like qualities including power, volume, sustain, and an even tone.