Mari Mathias o'r band Mwsog syn'n rhannu yr un band fydde hi'n dewis i wrando arnyn nhw AM BYTH...🏴󠁧󠁢󠁷󠁬󠁳󠁿 Thanks to Mari Mathias from Mwsog for sharing the one band she'd choose to listen to forever!   #Horizons #WelshMusic #MariMathias #Cymru