Toop 42: "Miles Davis, Sly Stone, Santana, War, The Temptations, Cream, The Velvet Underground, La Monte Young, Jimi Hendrix, Pharoah Sanders, The Grateful Dead, and Terry Riley all indulged in marathon trance grooves, rippling with strange currents, often stretching beyond the limits of endurance into boredom, but hunting ecstatic release through repetition"