Manylion am y math o ddogfen lywodraethu sydd gan yr elusen a phan y'i sefydlwyd. Nid dyma destun llawn dogfen lywodraethu'r elusen.
CONSTITUTION AND RULES ADOPTED 19TH JULY 1944 AMENDED 14TH SEPTEMBER 1984
Gwrthrychau elusennol
TO PROMOTE THE EDUCATION OF THE GENERAL PUBLIC IN THE APPRECIATION OF MUSIC IN ALL ITS ASPECTS BY THE PERFORMANCE OF ORCHESTRAL WORKS AND BY SUCH OTHER WAYS AS THE ORCHESTRA THROUGH ITS COMMITTEE SHALL DETERMINE FROM TIME TO TIME.
Maes buddion
Y maes y gall yr elusen weithredu ynddo, fel y nodir yn ei dogfen lywodraethu.
