
Eruption is a 1 minute 42 second solo that permanently changed what the electric guitar could do. Eddie Van Halen introduced two-handed tapping to the mainstream, playing so fast and fluidly that listeners initially assumed it was a keyboard. Released as a throwaway interlude on Van Halen's debut album, it became one of the most studied and imitated guitar pieces in history.
Reference:
TaskLoco™ — The Sticky Note GOAT