Counter-tenor Robert Expert has sung all over Europe and even Canada or Japan with the most prestigious phalanges, Baroque and contemporary opera, musical theater, oratorio, as well as in recital or chamber formation. He is the dedicatee of a large number of creations. Among twenty discs, there will be a Vivaldi / Handel recital named Best Baroque Vocal Record by the Academy of the Lyric Disc in 2006, the title role of the Orlando de Porpora, a compilation of tunes by the most famous counter-tenors at Decca, recreates of the seventeenth tunes with the old music ensemble La Primavera ... He has been the guest of several TV shows, radio, Eve Ruggieri has dedicated a Musiques au Coeur, he hosted a show culture on France 2 with Patricia Petibon ... Pedagogy is his deep passion: holder of the CA, he teaches for more than 20 years in master class or conservatory (CRR of Paris, CRD Bobigny) both in France and abroad . At CNSM Lyon, he teaches since September 2017 the baroque singing. He takes part in scientific research protocols on the voice, and gives numerous conferences on vocal acoustics, pedagogy or certain historical and musicological themes. He was a scientific expert at La Voix, the exhibition that talks to you at the Cité des Sciences in Paris. He is one of the authors of the book La Voix Chantée - Entre Sciences et Pratique, directed by Nathalie Henrich, published by De Boeck-Solal.