Dobrzyński was a member of the Lvov Music Society, as well as a committee member of the Institute of Music. But by 1860 his health began to fade, limiting his participation in the Warsaw music scene. Despite the limitations, he devoted himself completely to composition. He wrote his first opera, Monbar dzyli Flibustierowie/Monbar (or the Filibusters, Op.30) which premiered in Warsaw at the Teatr Wielki in 1863. Pieces of his work were played in concert halls throughout Warsaw, Poznan, Berlin and Dresden.