Bluesman and guitar virtuoso Johnny Winter passed away in 2014, but his band’s guitarist and producer Paul Nelson — the pair’s collaboration, Step Back, won the Best Blues Album Grammy in 2015 — fights to keep Winter’s legend alive. Saturday night, the Paul Nelson Band comes to the Bing Crosby Theater for a show full of delicious blues licks, a lifetime of memories and even a taste of Nelson’s latest album Badass Generation, which shows off everything from hard-edged rock to ambitious singer-songwriter tunes. Opening the concert is local rocker Peter Rivera (formerly of Rare Earth) along with Spokane blues guitarist Joe Brasch and keyboardist Danny McCollim.