In the early jubilee period, there were no instruments used in part of the performances. In the 1940s, the jubilee quartets were formed and became known as gospel quartets. During this gospel period, the gospel quartets included instruments such as guitars, drums, and piano. Then post-1940s, the gospel quartet began to change by adding new elements to the performance by incorporating gospel characteristics. Furthermore, the quartets also contained vibrato, falsetto, shouting vocals, and timbre changes. The gospel groups began to walk and run across the stage, jump off the stage, and use walk-in aisles during the concert. One of the groups involved with this new vamp was the Five Blind Boys of Mississippi. With their singing style that captivated the crowds, the Five Blind Boys of Mississippi impacted and changes the jubilee quartets’ traditions forever.