His first EP "Homeotermo" was recorded in 2011, and soon after, he started working with músician Siddhartha (a former-teacher and friend). He asked him to be his producer and Siddhartha agreed, saying about him: "Caloncho is a newly born musician, he is being newly discovered, both by himself and by those around him. He sent me a sample of his music and I immediately felt it was a musical obligation to help extract the sweet juice from his fruitful melodies." (Caloncho's website).