OK, the plot, as they say, thins.
I googled the mobile phone number given in the email and discovered that this same Anthony Bab is also soliciting UK representatives for "Alizyme", and that the phone number redirects out of the UK.

Clearly, therefore, a scam but slightly cleverer than last time in that he's using a better-known venue and links to an existing website where a real Mike Gary has a real company called Heritage Music.

I was mildly excited there for all of ....oh, three minutes.

Back to obscurity.

Anne