The bass is banging, the guitars are shrieking and Lenny Kravitz is howling on “Blue Electric Light,” the rocker's best stuff in years, offering a welcome blast of funk in 2024. There's joy and swagger in almost every track, with Kravitz showing his knack for adding cool stuff to songs — a blistering guitar part here, a sax solo there or a touch of Wurlitzer. Bongos?