Significant evidence now exists for the importance of sound in prehistory and research in this area has progressed over the past 30 years, with a number of archaeological finds that are thought to be musical instruments found in caves associated with palaeolithic occupation. Particularly well known are bone flutes of Aurignation date some 35-40,ooo years old and fairly advanced examples of an aerophones (bull roarers) from the same period. This shows the complex nature of instruments, yet surviving artefacts are not the sole method of examining prehistoric sounds.
