Ifan Davies a Siân Adler yn gofyn cwestiynau am... cerddoriaeth bop! Tryfan a Brynrefail sy’n cystadlu! Tryfan and Brynrefail compete in Radio Cymru's annual pop quiz for schools! Show more
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Ifan Davies a Siân Adler yn gofyn cwestiynau am... cerddoriaeth bop! Tryfan a Brynrefail sy’n cystadlu! Tryfan and Brynrefail compete in Radio Cymru's annual pop quiz for schools! Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
