Stone Canyon Band; former Monkee Mike Nesmith who formed the First National Band; and Neil Young. The Dillards were, unusually, a country act, who moved towards rock music. The greatest commercial success for country rock came in the 1970s, with artist including the Doobie Brothers, Emmylou Harris, Linda Ronstadt and the Eagles (made up of members of the Burritos, Poco and Stone Canyon Band), who emerged as one of the most successful rock acts of all time, producing albums that included Hotel California (1976). Southern rock The founders of Southern rock are usually thought to be the Allman Brothers Band, who developed a distinctive sound, largely derived from blues rock, but incorporating elements of boogie, soul, and country in the early 1970s. The most successful act to follow them were Lynyrd Skynyrd, who helped establish the "good ol' boy" image of the subgenre and the general shape of 1970s guitar rock. Their successors included the fusion/progressive instrumentalists Dixie Dregs, the more country-influenced Outlaws, jazz-leaning Wet Willie and (incorporating elements of R&B and gospel) the Ozark Mountain Daredevils. After the loss of original members of the Allmans and Lynyrd Skynyrd, the genre began to fade in popularity in the late 1970s, but was sustained the 1980s with acts like .38 Special, Molly Hatchet and The Marshall Tucker Band. New genres (the early 1970s) Progressive rock Progressive rock, a term sometimes used interchangeably with art rock, was an attempt to move beyond established musical formulas by experimenting with different instruments, song types, and forms. From the mid-1960s groups including The Left Banke and The Beach Boys, had pioneered the inclusion of harpsichords, wind and string sections on their recordings to produce a form of Baroque rock. Instrumentals were common, while songs with lyrics were sometimes conceptual, abstract, or based in fantasy and science fiction. The American brand of prog rock varied from the eclectic and innovative Frank Zappa, Captain Beefheart and Blood, Sweat and Tears, to more pop rock orientated bands like Boston, Foreigner, Kansas, Journey and Styx. These, beside British bands Supertramp and Electric Light Orchestra, all demonstrated a prog rock influence and while ranking among the most commercially successful acts of the 1970s, issuing in the era of pomp or arena rock, which would last until the costs of complex shows (often with theatrical staging and special effects), would be replaced by more economical rock festivals as major live venues