Thierry Dran begins his musical studies with the academy of music of Bordeaux in 1977 with his parents André Dran and Monique De Pondeau them self singers, professor of singing and of scene.
After one year in Bordeaux he enters in the opera’s school of Paris and remains there for 4 years in the class of Michel Sénéchal. During his last year of study he sings the part of Ernesto in Don Pasquale (Donizetti) and the part of Paris in La Belle Hélène (Offenbach) at Nantes’s opera

His professional career begins on 1983 with an invitation of Louis and Gino Quilico as to take part in the festival of Parry Sound in Canada for several concerts. He starts also on the French scenes taking part in productions as Vincent in Mireille (Gounod), Toinet in Le Chemineau (Leroux), the principal part of Fortunio (Messager), Nadir in Les Pêcheurs de Perles (Bizet), Piquillo in La Périchole (Offenbach) as well as the Italian Singer in part of Capriccio conducted by Ferdinand Leitner for Radio-France. Furthermore, he sings Le Récitant in the Viol de Lucrèce (Britten) in Albi’s festival before being Jean in Le Jongleur de Notre-Dame (Massenet) in Bordeaux.

During the 1984-85 season he is engaged by the Berlioz’s festival in Lyon in the part of Benedict in Béatrice et Benedict (Berlioz) and in the same time in the Champs-Elysées’s theater in La Périchole (Offenbach) in the part of Piquillo with Gabriel Bacquier, then he is conducted by Christof Perick in Elektra (R. Strauss). He takes part this same year in several concerts (Le Requiem of Mozart, Jeanne au Bûcher of Honegger, La Création of Haydn) conducted by Marc Soustrot, Serge Baudo and Jean-Claude Casadessus. He is Juanito in Andalousie (Lopez) at Nancy’s opera. He is also Prince Saphir in Barbe Bleue (Offenbach) in Genève’s opera.

During the 1985-86 season, he starts out at foreign with the Glyndebourne’s festival in two works of Ravel, Gonzalve in L’Heure Espagnole, and the three parts of tenor (La Théière, Le Petit Vieillard and La Rainette) in L’Enfant et les Sortilèges. He sings again L’Heure Espagnole (Ravel) in Paris’s opera and then sings Mazal in Le voyage de Mr Broucek (Janacek) and the part of Fenton in Falstaff (Verdi) in Lyon’s opera. At Evian’s festival, he takes part of the creation of Passeport pour Paris (Isabelle Aboulker) conducted by Mistlav Rostropovitch. He sings Lindoro in L’Italienne à Alger (Rossini) during a tour around Paris.

During the 1987-88 season, he sings in Paris’s opera in the part of Don Ottavio of Don Giovanni (Mozart). He is also Le Comte Almaviva in Le Barbier de Séville (Rossini) in Liège’s opera (Belgium) and at the opera of Amsterdam (Nederland). He is also invited again at Glyndebourne’s festival for L’Heure Espagnole and L’Enfant et les Sortilèges which are recording by the BBC.

In 1988-89, he sings Cassio in Otello (Verdi) with Nantes’s opera, Aristée and Pluton in Orphée aux Enfers (Offenbach) at Paris’s opera. He takes the part of Melot in Tristan et Iseult (Wagner) conducted by Daniel Baremboïm in concert with the Paris’s orchestra in Pleyel Hall. He sings also the part of Don Ottavio in Don Giovanni (Mozart) in Tours and Avignon and also L’Heure Espagnole (Ravel) and the part of Maître Pierre in Le Retable de Maître Pierre (De Faya) at Amsterdam’s opera. He sings several concerts of IXth symphony of Beethoven conducted by Alain Lombard. He creates in world creation the part of Colin in L’Ecume des Jours (Denisof) at l’Opéra Comique of Paris. He is The Duc of Mantoue in Les Brigands (Offenbach) at Genève’s opera.

During the season 1989-90, Thierry Dran sings Don Ramiro in the Cenerentola (Rossini) in Metz’s theater and the principal part in Albert Herring (Britten) in Nancy, Aristée and Pluton in Orphée aux Enfers (Offenbach), Gonzalve in L’Heure Espagnole (Ravel) at the opera comique of Paris.

Thierry Dran has been invited several times in Unite State in New York (Carnegie Hall) for L’Enfant et les Sortilèges (Ravel) and for the same opera at Philadelphia conducted by Charles Dutoit.

During the 1990-91 season, Thierry Dran performs in Le Comte Almaviva in Le Barbier de Séville (Rossini) in Metz, Albert Herring in Tours, Benoît in Le Roi l’a Dit (Delibes) in Nantes with Nathalie Dessay.

During the 1991-92 season Thierry Dran sings in Bordeaux the three part of L’enfant et les Sortilèges (Ravel), Cassio in Otello and Gaillardin in La Chauve-Souris (J.Strauss). He sings Rodriguez in Don Quichotte (Massenet) in Capitole of Toulouse and Leopold in Les Valses de Vienne in Marseille’s opera.

Continue doing his soloist career, he starts teaching the song. He trains the young singer of pop Vincent Niclot.

During the 1998-05 season he has participed at the production of La Chauve-Souris (J.Strauss) in Rouen, La Maison des Morts (Janacek) in Le Mans, La Dame de Pique (Tchaikoovsky), Don Carlos (Verdi), Les Joyeuses Commères de Windsor (Nicolaï), Lucia di Lammermoor (Donizetti) at the operas of Nantes and Angers.