guitar building its chemical composition is first altered by heating it. was the household the challenge was to find the right recipe that is to say the exact temperature in length of time the wood has to be in the oven to improve the acoustic properties disliking stuff so far as. wood is made up of three main components cell walls consists largely of cellulose which makes them rigid along with lignin another large molecule that gives the wood stability helped by hemi cellulose polymers the ratio of these components affects the woods acoustic properties including vibrational characteristics and the attenuation of the sound three hours of thermal treatment at most one hundred eighty degrees celsius that proved to be a method for optimizing the sound of the german domestic woods the we don't know exactly what is responsible for the properties of these tropical woods all we can do is measure their physical characteristics and then try to adjust the domestic