The music called Jazz was born sometime around 1895 in New Orleans. It combined elements of Ragtime, marching band music, and Blues. What differentiated Jazz from these earlier styles was the widespread use of improvisation, often by more than one player at a time. Jazz represented a break from Western musical traditions, where the composer wrote a piece of music on paper and the musicians then tried their best to play exactly what was in the score. n a Jazz piece, the song is often just a starting point or frame of reference for the musicians to improvise around. The song might have been a popular ditty or blues that they didn't compose, but by the time they were finished with it they had composed a new piece that often bore little resemblance to the original song. Many of these virtuoso musicians were not good sight readers and some could not read music at all, never the less their playing thrilled audiences and the spontaneous music they created captured a joy and sense of adventure that was an exciting and radical departure from the music of that time. The first Jazz was played by African Americans and Creole musicians in New Orleans. The cornet player, Buddy Bolden is generally considered to be the first real Jazz musician. Other early players included Freddie Keppard, Bunk Johnson, and Clarence Williams. Although these musicians names are unknown to most people, then and now, their ideas are still being elaborated on to this day. Most of these men could not make a living with their music and were forced to work menial jobs to get by. The second wave of New Orleans Jazz musicians like Joe "King" Oliver, Kid Ory, and Jelly Roll Morton formed small bands, that took the music of these older men and increased the complexity and dynamic of their music, as well as gaining greater commercial success. This music became know as "Hot Jazz", because of the often break neck speeds and amazing improvised polyphony that these bands produced. A young virtuoso cornet player named Louis Armstrong was discovered in New Orleans by King Oliver. Armstrong soon grew to become the greatest Jazz musician of his era and eventually one of the biggest stars in the world. The impact of Armstrong and other Jazz musicians altered the course of both popular and Classical music. African American musical styles became the dominant force in 20th century music.