Thank you :)

Well - I've checked in the Pevsner book .. and sure enough it says ..

St. Peter and St. Paul

Monuments - South aisle/West end - Thomas Sinderby (d. 1812), by J. Pearce of Frampton; white marble tablet with a charming relief of violin, bow and open music book.

Well - it doesn't mean it IS my man - but it looks rather promising .. now I need to find out what it says on the plaque and then do a local search .. any suggestions of where to go from here, please? :)