Improvised with distortion, feedback, and experimentation on electric guitar
Explanation:
Pink Floyd were an English rock band formed in London in 1965. Gaining a following as a psychedelic rock group, they were distinguished for their extended compositions, sonic experimentation, philosophical lyrics, and elaborate live shows, and became a leading brand of the progressive rock genre. They are one of the most commercially successful and influential bands in popular music history.
Marbury v. Madison is important because it established the power of judicial review for the U.S. Supreme Court and lower federal courts with respect to the Constitution and eventually for parallel state courts with respect to state constitutions.