SBB (first Silesian Blues Band, later Szukaj, stock exchanges, build – Search, Break, Build or Search, boron, build) is a Polish rock band founded in 1971 by Józef Skrzek, multi-instrumentalist and vocalist of the group. Over nearly 30 years, the band went through many line-up and concept changes. In 2000, SBB returned to the rock scene. The extended songs were replaced by shorter and, one might say, 'sharper' ones. The concerts, however, are still a surprise - the band can at any time reach for pieces from the older repertoire or play a confusing, hypnotic improvisation.