True or False: Bebop musicians usually based their performances on the same forms as swing bands.

The statement about bebop musicians performing based on the same forms as swing bands is marked true. Bebop did indeed utilize familiar chord progressions and song forms that were common in the swing era, such as the AABA structure, which is prevalent in many popular songs of the time. This allowed bebop musicians to build upon existing musical foundations while introducing more complex harmonies, rhythms, and improvisational techniques.

However, while the forms were similar, bebop distinguished itself through its emphasis on improvisation, faster tempos, and intricate melodies. This created a shift in jazz from the more dance-oriented swing music to a style that focused on artistic expression and virtuosity.

Overall, although bebop musicians used the same basic forms, their approach and execution led to a significant evolution in jazz, marking the transition to a more sophisticated musical style.