Jerry Garcia

FILE - - Jerry Garcia, shown in this 1978 publicity photo, whose band the Grateful Dead symbolized the 1960s counterculture and remained a top concert draw three decades later, died Wednesday, Aug. 9, 1995, at a drug treatment center. He was 53. The cause was a heart attack, a band spokesman said. (AP Photo/FILE/Arista)

Jerry Garcia

FILE -- Jerry Garcia, shown in this 1991 publicity photo, the master guitarist whose band the Grateful Dead symbolized the 1960s counterculture and remained a top concert draw three decades later, died Wednesday, Aug. 9, 1995, at a drug treatment center. He was 53. The cause was a heart attack, a band spokesman said. (AP Photo/FILE/Arista)

Jerry Garcia

AP Photo/Lennox Mclendon

The Grateful Dead open up the final day of the US Festival in San Bernardino, Ca. early Sunday morning on Sept. 5, 1982. Guitarist Jerry Garcia, right, and drummer Mickey Hart play music spanning two decades to an enthusiastic crowd of rock and roll fans. (AP Photo/Lennox Mclendon)

Jerry Garcia

AP Photo

Jerry Garcia, leader of the legendary group “The Grateful Dead,” works with his guitar on May 8, 1979. At the time of the Woodstock Festival, many group had an uncertain future. “Musically, it was a total disaster for us," Garcia said of Woodstock in a interview. “I remember people standing in back of us yelling the stage is falling down, plus it was wet for so long and we had all that electronic equipment.” (AP Photo)

Jerry Garcia

Jerry Garcia, leader of the legendary group The Grateful Dead, works with his guitar on May 8, 1979. At the time of the Woodstock Festival, many groups had an uncertain future. “Musically, it was a total disaster for us,” Garcia said of Woodstock in a interview. “I remember people standing in back of us yelling the stage is falling down. Plus it was wet for so long and we had all that electronic equipment.” (AP Photo)

Jerry Garcia

AP Photo/Kristy McDonald

** FILE ** Grateful Dead lead singer Jerry Garcia performs at the Oakland , Calif., Coliseum in this Nov. 1, 1992 file photo. Garcia's hometown of San Francisco has named a 600-seat amphitheater in his memory. (AP Photo/Kristy McDonald)

Jerry Garcia

Grateful Dead guitarist Jerry Garcia performs on stage at the Oakland Coliseum in Oakland, Calif., during one of the group’s sold-out concerts in December 1992. The 50-year-old rock star, after his second major health scare, is 60 pounds lighter and healthier than he has been in years. (AP Photo/Eric Risberg)

Jerry Garcia

Legendary leader of the Grateful Dead, Jerry Garcia, shown during a concert in Highgate, Vt., Thursday, June 15, 1995, died early Wednesday, Aug. 9, 1995. (AP Photo, File, toby talbot)

Jerry Garcia

Greatful Dead band member Jerry Garcia performs at Sullivan Stadium in Foxboro, Massachusetts on July 2, 1989. This is the first concert of the eastern tour. (AP Photo/Steve Senne)

Jerry Garcia

Guitarist Jerry Garcia of the Grateful Dead smiles as he plays in Highgate, Vt., in this July 1994 file photo. Garcia died on Aug. 9, 1995, after his heart simply gave out, according to a coroner's conclusion. ``He was a 53-year-old man with hardening of the arteries,'' Marin County coroner's investigator Gary Erickson said. ``This was a mechanical process.'' (AP Photo/Toby Talbot)

Jerry Garcia

Grateful Dead guitarist Jerry Garcia performs on stage at the Oakland Coliseum in Oakland, Calif., during one of the group’s sold-out concerts in December1992. The 50-year-old rock star, after his second major health scare, is 60 pounds lighter and healthier than he has been in years. (AP Photo/Eric Risberg)