Léo Ullmann began his musical education at the Conservatoire du 10ème arrondissement de Paris in the class of Julien Dieudegard, where he acquired the basics of the violin and the passion to go further.

In June 2016, after five years of intensive study, he brilliantly completed his studies at the “Koninkjlijk Conservatorium” in Brussels in the class of the great Russian violinist Valéry Oïstrakh. In June 2017, he obtained his Master’s degree in pedagogy.

During his apprenticeship, he took part in the Master-Class of Laurent Korcia, Dong-Suk Kang, Pavel Vernikov, Philippe Graffin, Sarah Nemtamu, Stephan Picard, the Talich Quartet, etc.

In 2018 at the Abbaye de Noirlac (France), he recorded an album with the Ensemble “Résonance” with countertenor Samuel Cattiau, guitarist Quentin Dujardin (guitar), Matthieu Saglio (cello) and Iranian percussionist Bijan Chemirani.

In 2019, he took part as a sideman in the new Quartet of the cellist Matthieu Saglio and recorded an album with this formation which includes Vincent Peirani, Nguyên Lê, etc.

In December 2019, he won in Budapest (Hungary), the Second Grand Prize of the first edition of the “Roby Lakatos International Violin Competition”.

He plays with artists such as: Serge Camps, Angelo Debarre, Adrien Moignard, Sébastien Giniaux (guitars), Chérif Soumano (kora), Costel Nitescu (violin), Roberto de Brasov (accordion), Rona Hartner (singer), Jenő Lisztes (cymbalum), Frank Anastasio (double bass).

At the same time, from a very young age, he was passionate for gypsy music and jazz and has been playing in the Roby Lakatos Ensemble as second violin (concerts in Belgium, Italy, Germany, the Netherlands, France, Corsica, Hungary, Croatia).