After a series of rehearsals at Island Studios in Notting Hill, the band formed a live set featuring "The Barbarian", an arrangement of the piano piece "Allegro barbaro" by Béla Bartók, "Rondo", an arrangement of the jazz standard "Blue Rondo à la Turk" by Dave Brubeck that Emerson had recorded with the Nice, an arrangement of "Nut Rocker" as an encore, and a rock adaptation of "Pictures at an Exhibition" by Modest Mussorgsky that Emerson wished to do after seeing it performed with an orchestra at the Royal Festival Hall in London when he was in the Nice. He bought a copy of the score, and Lake and Palmer agreed to adapt it. Their first live gig as Emerson, Lake & Palmer followed at Plymouth Guildhall on 23 August 1970, supported by local band Earth. They travelled to the venue in a transit van previously owned by fellow progressive rock band Yes, and were paid around £400 for the gig. A small venue situated outside London was deliberately chosen in case the concert was a failure, but the concert was well received. Their second gig took place on 29 August with a set at the Isle of Wight Festival which was attended by an estimated 600,000 people and drew considerable attention from the public and music press. At the end of "Pictures at an Exhibition", the band fired two cannons that Emerson had tested in a field near Heathrow Airport.