The London Symphony Orchestra (or LSO) is a symphony orchestra based in London. Founded in 1904, it is London's oldest symphony orchestra. It was formed by a group of players who left The Queen's Hall Orchestra in order to form a new group based on co-operative principles. Since 1982, the LSO has been based at the Barbican Centre. Among its programmes there have been large-scale festivals celebrating composers such as Berlioz, Mahler and Bernstein. The LSO claims to be the world's most recorded orchestra and has made gramophone recordings since 1912.
https://en.wikipedia.org/wiki/London_Symphony_Orchestra