Earth Wind & Fire Experience with Al McKay. The great name of disco music of the seventies will come to Roses on August 5 to fill it with funk, soul, disco and jazz. McKay, a key player, guitarist, producer and composer of the legendary band, will revive with an all-star band of musicians of the genre, great hits such as “September”, “Let’s Groove” or “Boogie Wonderland”, which has brought them up to six Grammy Awards.