He then moved to Madrid to study at the Royal Conservatory of Music with professors Vicente Peñarrocha (soloist with the Spanish National Orchestra), Máximo Muñoz Pavón (soloist with the Spanish Radio and Television Symphony Orchestra) and Justo Sanz Hermida (soloist with the Madrid Community Orchestra).
He has also taken advanced clarinet courses with professors Marcel Ancion, Anton Weinberg, Michel Arrignon, Philippe Leloup and Henri Bok (bass clarinet).
López Carreño has been a clarinet teacher with the Granada Municipal Orchestra since 1984.
Throughout his career, he has collaborated with orchestras such as the Orquesta Clásica Spar, the Orquesta Sinfónica Ciudad de la Alhambra, the Orquesta de Craiova, the Orchestre Européen des Jeunes (France), the Joven Orquesta Sinfónica de Granada, the Orquesta Ciudad de Granada, the Orquesta de Extramadura (Spain) and the Orquesta de Granada (Spain).
He was awarded first prize for chamber music at the Victoria Eugenia Royal Conservatory of Music in Granada.
López Carreño is a founding member of the Alhambra Clarinet Quartet.
He has performed as a soloist with the European Youth Orchestra during a tour of France, where he played the clarinet concertos by Carl Maria von Weber, and with the Granada Municipal Orchestra, performing works by Weber, Rossini, Krommer, Copland, etc. He has also taken part in the 1st and 2nd National Clarinet Encounters, performing M.C. Whitney, J. Françaix, A. Rydin, E. Bozza and Mike Curtis, among others.
He is currently soloist with the Granada Municipal Orchestra and a member of the teaching staff of the Julián Menéndez International Clarinet Course.