A genre that kick started a musical revolution, just about the 1920s. This music has morphed from early blues-influenced music from different parts of the world into many different sides of the same musical coin over the last 90 years or so, from the dancing swing styles to the improvisational-based numbers that would bring in a range of rhythms, mash them, and give you something entirely new to listen to. Some go the mellow route, others the melody route while others completely re-invent what bringing a group of instruments together can mean, from groove to cool to free and fusion, there is something in this genre for everyone.