[1] Following his debut with the Berlin Philharmonic Orchestra, Gelmetti regularly performed as a conductor at international opera houses, concert halls, and festivals.
[2] From 1989 to 1998 he was the Principal Conductor of the Stuttgart Radio Symphony Orchestra[3] as well as the Schwetzingen Festival;[4] and from 2000 to 2009, Musical and Artistic Director of Teatro dell'Opera di Roma.
[10] While at the Teatro dell'Opera di Roma he led some lesser-known or rediscovered lyric works; the world premiere of Marie Victoire (written in 1914 but never performed) and Marilyn (1980) by Lorenzo Ferrero; La fiamma (1933) by Ottorino Respighi; Sakùntala (1921) by Franco Alfano;[11] and Iris (1898) by Pietro Mascagni.
[12] He notably conducted Mozart’s Don Giovanni, Le nozze di Figaro (earning him the "Best Conductor of the Year" prize from Opernwelt), Così fan tutte and The Magic Flute.
Most recently he led a video production of La Cenerentola directed by Carlo Verdone for Rada Film and Verdi's Messa da Requiem in Rome.
More recently, the Teatro Comunale di Bologna commissioned him the "Cantata della Vita" for choir, cello solo and orchestra.