Instrumental rock is a type of rock music which emphasizes musical instruments, and which features very little or no singing. Examples of instrumental rock can be found in practically every subgenre of rock, often from musicians who specialize in the style. Instrumental rock was most popular from the mid-1950s to mid-1960s, with artists such as Bill Doggett Combo, Jimmy Reed, Earl Bostic, The Fireballs, The Shadows, and The Ventures. Surf music had many instrumental songs. Many instrumental hits came from the R&B world. Funk and disco produced several instrumental hit singles during the 1970s. The Allman Brothers Band have many instrumentals. Jeff Beck also recorded two instrumental albums in the '70s. Progressive rock and art rock performers of the 1960s and 1970s did many virtuosic instrumental performances.