Many researchers, from the second halves last century, began to reconstruct the history of music. So bornt the first students
of
etnomusicology (or comparative musicology) (among which: Wallaschek, Stumpf, Sachs, Hornbostel, Schneider) that study, from the prehistory to our days, the evolution that had suffered the culture of music in the different countries of the world. This was also possible thanks to the invention of the mechanical phonograph by Edison (1878) that allowed a deepened study of songs and of the instrumental music of different
population, that sometimes resulted of difficulty transcription because orally handed down and not built with western tones. The different theories on the origin of music are all in agreement ones in to affirm that there is not a common origin because aevery population has differently developed their own musical knowledges. And however spread the opinion that music has had origin from the necessity of communication of the man and that has been the first type of language.