Simon Emmerson's appearance on BBC Radio 3's New Music Show this past Saturday May 16th is now available for listening online, until June 13th:
https://www.bbc.co.uk/sounds/play/m000j847
This includes an interview with Robert Worby, as well as three of Emmerson's works:
'Ophelia's Dream II'
'Piano Piece IV'
'Stringscape'
...as well as works by James Tenney, Roger Smalley, Georges Aphergis, and plenty more.