 In the kitchen of his flat on Rue de la Trémoille , near the Champs @-@ Élysées , he set up a small recording studio . It included his first synthesiser , an EMS VCS 3 , and an EMS Synthi AKS , each linked to Revox tape machines . For a 1969 exposition at the Maison de la Culture ( Cultural House ) in Reims , Jarre wrote the five @-@ minute song " Happiness Is a Sad Song . " His first commercial release was in 1969 with La Cage / Erosmachine , a mixture of harmony , tape effects and synthesisers . 
