Do Endangered Woods Make Better Guitars? (video) Lancaster University Share Print E-Mail Loading video... Caption Some of the woods used for guitar backs are revered by guitar players for their acoustic qualities, and are claimed to be tonally superior to other woods. Unfortunately many of these woods are expensive, rare, and from unsustainable sources. Credit Lancaster University Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.