He started his singing studies in Barcelona, broadening them in London (King's College, singing and composition), in Basilea (Schola Cantorum Basiliensis, with Dominique Vellard - «Ensemble Gilles Binchois»), where he specialized in mediaeval and baroque music and where he finished his studies with Nigel Rogers, Rosmarie Meister and Karin Smith (musicology), Hans Martin Linde (direction), and later with Peter Kooy in Hannover. Interested in the retrieval and diffusion of the Spanish and Italian baroque music, he created in 1987 the «Beatus Ille Ensemble», the chamber orchestra specialised in interpretation with original instruments based on the future «Royal Chamber Opera Company» (RCOC). With this formation he has conducted works by Antonio de Literes (Los Elementos, 1992), Antonio Vivaldi (Boasts e Imeneo, La Senna Festeggiante, 1993), David Pérez (The Olimpiade, 1994), Vicent Martín y Soler (L'Arbore di Diana, 1995-1996, Il Sogno, season 2000-01) Domènec Terradellas (Artaserse, Amphitheater of the Greek Festival of Barcelona 1998), Echo e Narciso by Domenico Scarlatti, «Portrait of a composer: Mariana Martínez», and the serious opera Ifigenia in Aulide by Martín y Soler. In May of 2005 he conducted the production and recording of the opera Orlando by Porpora in co-production production for the Festival of Aranjuez and the Festival of Sarrebourg-Le Couvent with the record company K617. In the season 2006-2007, he directed Ifigenia in Áulide by Martín y Soler, again with the Sarrebourg Festival and the recording with K617-Harmonia Mundi and Aminta, by Antonio Mazzoni, a production for the Henre Festival (Germany) organized by the WDR-3 for which he was awarded in 2008 with the Gold Orfeo, given by the National Lyrical Record Academy of France with the coveted Diamond, of the Opera Magazine. With the launch of Artaserse, the first world-wide full recording of an opera by Domènec Terradellas, Juan Bautista Otero he has been awarded by the French Record Academy with another Golden Orfeo in its 2009 edition, making him the only Spanish conductor to receive this award consecutively. Juan Bautista Otero conducts one of the most interesting and complete projects of full retrieval of Spanish historical patrimony of scenic music, carried out his orchestra, record and publishing by Royal Chamber Opera Company with headquarters in Barcelona. At present he is preparing the international launch of 3 productions, all of them unedited and the first world-wide recordings of a new opera of Terradellas: Sesostri, re of egitto (Rome 1751), the first world-wide recording of a selection of the creative corpus by Mariana Martínez: portrait of a composer and the recording of Il Sogno, one of the most beautiful scenic cantatas by the composer Valencia Vicent Martín y Soler.