Jazzy genre is a term used to describe a type of jazz music that is characterized by fast tempos, improvisation, and complex chord progressions. Two of the most popular subgenres of jazzy genre are BOP and BEBOP. BOP, also known as 're-BOP, ' is a style of jazz developed in the 1940s that features fast tempos, complex harmonic structures, and improvisation. BEBOP, on the other hand, is a style of jazz developed in the 1940s and 1950s that is characterized by fast tempos, improvisation, and complex chord progressions. Both styles of jazz have been influential in the development of modern jazz.