Fans of the famous counterculture jam band the Grateful Dead should make the pilgrimage to Napa Valley’s Cliff Lede Vineyards: The Yountville winery’s Backstage reserve tasting lounge is serving as gallery for Out of the Attic: A Grateful Dead Retrospective. The exhibit showcases a selection of the band’s poster art and prints (available for purchase) from artists including Wes Wilson, Rick Griffin, Alton Kelly, and Stanley Mouse, curated by the Haight Street Art Center in San Francisco. Running through mid-Ju…