Johannes Leertouwer is a violinist and conductor with a distinct personal style and a very broad repertoire. As one of the leading Dutch specialists in the interpretation of 18th century repertoire he conducts both traditional symphony orchestras and period instrument groups and his repertoire ranges from baroque to contemporary. As a guest conductor he works regularly with the renowned choir and orchestra of the Netherlands Bach Society, the North Netherlands Orchestra, and the Osaka Symphoniker of Japan. Since 1998 he has been the artistic director and principal conductor of the Netherlands Youth String Orchestra. He made a large number of CD recordings. He teaches violin at the Conservatory of Amsterdam since 1990.
La Borea Amsterdam was founded by Johannes Leertouwer in 1990. Since then the ensemble has realised a select number of unusual projects in co-operation with the Holland Festival of Early Music, Studium Chorale in Maastricht and other organisations. La Borea is made up of leading musicians specialising in historical performance on period instruments.