Gyda Radio Cymru'n 40 oed, dyma sgetsus a chaneuon cyfredol gan Dyfan Roberts a Valmai Jones. Dyfan Roberts and Valmai Jones return for Radio Cymru's 40th anniversary.
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Gyda Radio Cymru'n 40 oed, dyma sgetsus a chaneuon cyfredol gan Dyfan Roberts a Valmai Jones. Dyfan Roberts and Valmai Jones return for Radio Cymru's 40th anniversary.