Accordeon teacher - Bristol?

I've had a request to try to find an accordeon (sic) teacher in Bristol for
a 12-yr. old, whose present teacher has had to retire for health reasons.
The lad concerned is interested in folk music, is a Morris dancer and has
been learning klezmer accordeon.  He needs someone who is good on technique
but also has an appreciation of traditional styles.  All my researches have
come to nought, so if anyone can help, or knows of someone who can, please
respond.

Thanks,
Barbara