I have a list as long as my arm of English and British music from 1600 too the present that is worthy of being recorded but hasn't been.
Yes, indeed, and it's a rather sore point. At the risk of banging my favourite drum once more.. performances of Arne, Shield, and Linley never get off the starting blocks. The best of that generation - who had operas performed at the Austrian Royal Court in Vienna, alongside those of Mozart, Haydn, Dittersdorf, and Salieri - was
Stephen Storace. Of whom you cannot find a single work on disk. The BBC couldn't give two hoots. His astounding Beethovenian heroic 'rescue' operas, such as THE SIEGE OF BELGRADE, THE PIRATES, or THE CHEROKEE are utterly ignored - and written off as 'ballad operas' (which they certainly aren't). His operatic 'thriller' THE HAUNTED TOWER (1789) remained in repertory in Britain unti the 1830s, where it was picked-up as career vehicle for the young tenor John Braham.