A*, C, D, in Music, Maths and Physics respectively. What are the chances giving it's a BBC criteria?
Dead side, Id' expect it be a no as the initial criteria are quite specific so without the grades then unfortunately I doubt your application would be looked at past the qualification section.
By the sounds of it however this scheme should be running for a few years, that at least means you have the opportunity to go to evening classes etc and perhaps complete/ re-do another A-level?
Not an easy or quick solution but nothing worth doing is easy or simple.