Asking the question: Is twelve tone technique even music? 12-tone was originally "invented" by Arthur Schoenberg at the beginning of the 20th century and was later applied by multiple 20th century composers from Berg to Charlie Parker. It became especially popular with Jazz musicians in the 40s, 50s and 60s, often integral to Be Bop. It has no Key, no Harmony, no Melody. And no discernible time signature or rhythm.