Answer:
Hard Bop
1. Early Jazz: The earliest forms of jazz came to be in the late 1800s/very early 1900s. Â
Swing: Swing, also called “Big Band” is characterized by a forward propulsion imparted to each note by the players. Â
Swing: Swing, also called “Big Band” is characterized by a forward propulsion imparted to each note by the players.
Bebop
Hard Bop
Fusion
2. Â Louis Armstrong
Duke Ellington Â
Ella Fitzgerald
Charlie Parker
3. Trumpet
Saxophone Â
Piano
Trombone
Clarinet
Double Bass
4. I am not completely certain what video you could be stating in this question, but regardless I will tell you my interest. My interest would have to  be the slow and smooth vibrations in the soundwaves when you propel the air from your lungs into the saxophone. Â
Explanation:
Hope this helps you as much as intended.