[1][2] He was principal double bass of the Academy of St Martin in the Fields,[3] from 1995 until 2014[4] but is also known as a chamber musician, recitalist, concerto soloist, teacher, conductor and program consultant.
[3] Since his 1984 London solo debut with the Philharmonia Orchestra, Bosch has appeared as a concerto soloist with many distinguished musicians, including Pinchas Zukerman, Sir Charles Groves and Nicholas Kraemer.
[7][8] Bosch has played a significant part in, and received acclaim for, the exploration of challenging and little-known music for double bass both in live performance and on disc.
[9][10] He has been responsible for a number of important first performances including "Pueblo", a commission from John McCabe, several works by Allan Stephenson,[9] and music by the South African composers Hendrik Hofmeyr and Paul Hanmer.
[3] As a teacher, Leon Bosch holds a professorship at Trinity Laban Conservatoire of Music and Dance in London [11] and is on the teaching staff at The Purcell School for young musicians [12] In 2024, he received the Walter Willson Cobbett medal, awarded by the Worshipful Company of Musicians for services to chamber music[13] Bosch's experiences under South Africa's apartheid[3] regime have ensured he has a keen interest in social and political issues; he holds a master's degree in Intelligence and International Relations from the University of Salford.