 Focus biographer Peet Johnson gives the general consensus that it was inspired by their appearance at the Barbarela de Conjuntos music contest in Majorca on 11 June 1970, where in the final round, their rendition of "Concierto de Aranjuez" by Joaquín Rodrigo ran over the 15-minute time limit, causing their plugs to be pulled.Focus proceeded to retaliate with van Leer playing the flute to the audience as a distraction while the rest of the group trashed the dressing room, after which they were arrested and spent a night in jail.Van Leer claims Akkerman came up with the track the day after their arrest, but the guitarist said he wrote it "on a mountain, with a beautiful Spanish stewardess ... in about five minutes".