Jeff Moyer, a musician and disability rights advocate, discusses his role in the disability rights movement, including the 504 sit-in in San Francisco in 1977, where his song "Hold On" became an anthem. Moyer recounted his experiences at the signing of the ADA in 1990, where he performed "ADA Anthem." He shared his book "Grit," which chronicles his life and contributions. Moyer also mentioned his upcoming book "The Giants and Me," which will feature stories of key figures in the disability rights movement. He emphasized the importance of music in advocacy and the need for continued efforts in disability rights.