Leslie is a solo clarinettist , recording artist and orchestral player. Currently Principal clarinetttist of Welsh Ntional Opera.He is also a highly respected teacher with a reputation for success and is, author of the clarinet self help book "Instant help for teaching and playing the clarinet". He also sells mouthpieces = the "Leslie Craven Model" made exclusively for him in USA by Bradford Behn.website www.lesliecraven.co.uk