Sánchez-Ohlsson began classical music training at the age of eight. He began his professional career in music in 2007 by the hand of his mentor , with whom he co-authored the Spanish entry in the Eurovision Song Contest 2007, "I Love You Mi Vida", performed by boy band D'Nash. Subsequently, Sánchez-Ohlsson has written a number of entries for Spain's national finals and has reached the Eurovision Song Contest another two times, in 2012 with "Quédate conmigo" performed by Pastora Soler, and in 2015 with "Amanecer" performed by Edurne. As a writer and producer, he has worked with a number of well-known Spanish artists including Auryn, Marta Sánchez or , and he has collaborated with international songwriters like Ina Wroldsen and Claudia Brant.