Òscar is a composer and conductor whose music has been widely praised for its imagination, dramatic expressiveness, and technical refinement. Awarded at the Krzysztof Penderecki International Composers’ Competition – Arboretum 2023, Òscar has established himself as an increasingly distinctive voice on the European contemporary music scene and is regularly invited to present his works internationally. The Mozarteum University of Salzburg dedicated a monographic concert to his chamber music, and he has given masterclasses in composition and chamber music at the Guildhall School of Music & Drama, the Liszt Academy of Budapest, the Royal Conservatoire of The Hague (School for Young Talent), and the Akoesticum Talent Programme in the Netherlands. He is a faculty member of the Porto PianoFest.
Dean of the Reina Sofía School of Music in Madrid since 2020, Òscar held high-level academic and artistic positions in the United Kingdom, where he was Director of Music at The Yehudi Menuhin School (2017–2020) and Professor of Orchestration at the Royal Academy of Music (2013–2020), an institution with which he remains linked as an Associate, an award given to former students who have made an outstanding contribution to music and society.
A graduate of the Valencia Superior Conservatory of Music and a former member of the Spanish National Youth Orchestra —performing under the direction of Carlo Maria Giulini and Gianandrea Noseda—, he furthered his training at the Guildhall School of Music & Drama and the Royal Academy of Music. His main teachers include Malcolm Singer and Simon Bainbridge (composition) and Alan Hazeldine (conducting), and he also received advice from Sir Harrison Birtwistle, Sir Peter Maxwell Davies, Alexander Goehr, and Julian Anderson.
Among his recent orchestral works, VISITACION[e]S (2025) stands out, a large-format song cycle for soprano and orchestra, commissioned by the Spanish National Orchestra and Choir (OCNE) and premiered at the National Music Auditorium in Madrid, which received particularly outstanding critical acclaim. Juan Gómez Espinosa (Ritmo) described it as «a demonstration of mastery of the score», while Rafael Ortega Basagoiti (Scherzo) called it «a score of excellent workmanship, finely orchestrated». In Platea Magazine, Víctor Mourelle noted that in VISITACION[e]S «Colomina i Bosch moves in a territory in which poetic reflection and technical elaboration coexist naturally», concluding that the composer’s presence in the OCNE season «confirms the growing relevance of his voice in contemporary Spanish creation».
Commissioned by the Yehudi Menuhin International Violin Competition, Shpigl for solo violin (2016), was described by composer John Adams as «a small masterpiece of musical and dramatic imagination». Subsequently, Adams programmed Shpigl in the Los Angeles Philharmonic’s Green Umbrella Noon to Midnight series, inviting Òscar to attend its American premiere at the Walt Disney Concert Hall.
Òscar’s music has been conducted by David Afkham, Jaime Martín, Pablo González, Baldur Brönnimann, Lucas Macías, Álvaro Albiach, and Christopher Austin. His works have been commissioned and performed by institutions and ensembles such as the Spanish National Orchestra and Choir, the Philharmonia Orchestra, the National Center for Musical Diffusion, the Orquestra de València, the Symphony Orchestra of the Principality of Asturias, the Royal Philharmonic of Galicia, Oviedo Filarmonía, the Orchestra of the Swan, the Arbós Trio, the Grup Instrumental de València, and the Schubert Ensemble. Performances have taken place throughout Europe and in the United States, in halls such as Wigmore Hall, Royal Festival Hall, Queen Elizabeth Hall, Purcell Room, St Martin-in-the-Fields, the Liszt Academy of Budapest, and universities such as Yale and New York University, as well as in the main Spanish concert halls, including the National Auditorium, the Teatros del Canal, the Palau de la Música, and the Palau de les Arts in Valencia, the ADDA Alicante, the Zaragoza Auditorium, and the Galicia Auditorium. His music has been broadcast in Spain, Portugal, Mexico, Denmark, and the United States.
His work has been featured in festivals such as the Cheltenham Festival, the City of London Festival, the Manchester QuartetFest, ENSEMS (València), the Córdoba Contemporary Music Festival, the Burgos Summer Festival, Música en Compostela, the European Congress of Conservatories, the Contemporary Music Days (Armenia), and Composers Now (New York), among others.
Òscar has also made orchestrations for Heinrich Schiff and the Kremerata Baltica (Gewandhaus in Leipzig, 2009), as well as for the Yehudi Menuhin International Competition in Beijing (2012). He has been composer-in-residence at the Iturbi International Piano Competition, the Barbican Pit Theatre in London, the Ciudad de Oviedo International Youth Orchestra, and Cove Park (Scotland), and has served on the jury of the Valencia International Band Competition.
As a conductor, Òscar was invited by the Orquestra de València for the ENSEMS International Festival and has performed in halls and festivals such as Gstaad Menuhin, the Juan March Foundation, and the Pau Casals International Festival. Frequently working with young musicians, he has collaborated with the youth orchestras of the Bogotá Philharmonic Orchestra and with ensembles such as the Royal Academy of Music New Music Ensemble, the Orchestra of The Yehudi Menuhin School, the Atheneum Kamerorkest of the School for Young Talent of the Royal Conservatoire of The Hague, Camerata XXI, Orpheus Sinfonia (London), and the New Music Ensemble of the Castilla y León Superior Conservatory of Music.