Brian Bromberg is an American jazz bassist and record producer who performs on both electric and acoustic instruments. Though he tends to gravitate towards the genre of smooth jazz, Bromberg has released some straight-ahead jazz records in which he performs with a trio, and has even ventured into more rock oriented jazz fusion territory as of late. His innovative and technically demanding style of playing extends to both electric and upright bass. On his acoustic bass albums, Bromberg performs jazzy interpretations of various pop and rock staples from the 60s and 70s completely solo. Regarding his work with electric bass, Bromberg, among other bassists, helped popularize the piccolo bass, or bass with each string tuned an octave up, by releasing several albums in which he plays both the bass line and melody. For instance, upon first listen many will be surprised to learn that, although soaring guitar can be heard throughout the album, Bromberg's 2005 release Metal contains only Bromberg on two overdubbed basses, one of which is heavily effects-laden to make it sound like an electric guitar.