development in town sixty of the twentieth century saw big changes to the size and construction of the guitar as well as playing technics that was the phase in which the use of tropical would speak came standard performers and audiences quickly got used to the sound and the tropical wood caught on up you couldn't put those times are over now. twenty years ago going turk reinhart a guitar maker into began in southern germany had the idea of using local woods instead which helps. build guitars out of untreated local word but i wasn't happy with the acoustics so i looked for a way to change the wood so it would sound like tropical work. in the wood engineers have been collaborating with trying hard to find out how to use domestic timber as a substitute for tropical wood to give the wood the necessary characteristics for