Looking at the Gloucestershire Baptism Index from 1813 onwards

The surname is spelt 3/4 ways

CINDRY
SINDERBERRY
SINDERBURY
SINDERBY

There are children born in Wotton-Under Edge from 1816 onwards of a Charles SINDERBY (Brazier, Tin Man) & Elizabeth - in High Street and Long Street. The family stayed in the area - and are on the 1830 Pigots Directory - George SINDERBY - Brazier & Tinman - Long Street. Family there 1841 census. Brazier means works in Brass - could be making the metal parts for the instrument?

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London Gazette 1822

http://www.london-gazette.co.uk/issues/18390/pages/1822/page.pdf

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FOD records

Marriage at Newnham 2 April 1711

Richard SINDERBIE of Westbury to Ann WABER