Jaroslav Březina graduated from the Prague Conservatory with Zdeněk Jankovský and continued his private studies with Václav Zítek. During his studies he became a member of the vocal group Dobrý večer kvintet. His concert activity is extensive, especially in projects of baroque and classical repertoire, on concert stages in Japan, Austria, Norway, Italy (performances of Dvořák’s Stabat Mater in Rome and Pisa), Germany, France and Spain. He has worked with conductors such as J. Bělohlávek, Ch. Mackerras, O. Dohnányi, S. Baud, G. Albrecht, T. Netopil and others.
Since 1993 he has been a soloist of the National Theatre Opera in Prague, where he has sung many roles from the national and international repertoire. He has performed many Mozart roles, including Don Ottavio (Don Giovanni), Tito (La clemenza di Tito), Tamino (The Magic Flute), Pedrillo (The Abduction from the Seraglio) and Ferrando (Così fan tutte), Count Almaviva (Rossini: The Barber of Seville), Dancairo (Bizet: Carmen), Verdi’s Fenton (Falstaff), Alfredo (La traviata) and Macduff (Macbeth), Beppe (Leoncavallo: The Comedians), Zinoviev Borisovich (Shostakovich: Lady Macbeth of Mtsensk), Smetana’s Vasek and Jeník (The Bartered Bride), Vitek (Dalibor), Stahlav (Libuše), Lark and Vit (The Secret) and Michalek (The Devil’s Wall), Dvořák’s Jiří (Jakobín) and Jirka (Čert a Káča), Janáček’s Laca (Jenufa), Kudrjáš (Katya Kabanová), Rechtor and Komár (The Cunning Little Vixen); Martinů’s Janakos and Panait (Greek Passions) and Mascaron (Plays about Mary), Nemorino (Donizetti: The Drink of Love), The Ghost of the Mask (Britten: Gloriana), etc.
He participated in the recording of Ryba’s Czech Christmas Mass (Deutsche Grammophon), Zelenka’s coronation opera Sub olea pacis et palma virtutis, which won the Cannes Classical Awards in 2002, Janáček’s opera Šárka and Dvořák’s opera Hard Sticks (all three for Supraphon). He has performed Janáček’s The Notebook of the Disappeared at the Teatro Real in Madrid, at the Moravian Autumn and Janáček Hukvaldy festivals, as part of the Czech Philharmonic’s concert season, and regularly in performances of this cycle at the National Theatre in Prague from 1998–2001. In 2016 he appeared as Rechtor in The Cunning Little Vixen in a production by Jan Latham-Koenig and Robert Carsen at the Teatro Reggio in Turin, and as Števa Buryja in concert performances of Jenufa in Prague and London with Jiří Bělohlávek and the Czech Philharmonic. He also cooperates with Czech Television (e.g. in the production of B. Martinů’s opera The Voice of the Forest). He was awarded the Thalia Prize for 2015.