Llywelyn successfully completed his postgraduate studies in 2015 with the highest class from the Universität Mozarteum in Salzburg where he was First Prize winner of the 'Savarez-Corelli Kammermusik Competition.’ He was mentored by Stephen Fitzpatrick (Principal Harpist of the Staatskapelle Orchestra, Berlin). His Master’s studies were generously funded by the James Pantyfedwen Trust.
Previous to his time in Salzburg, he studied the harp intensively with Caryl Thomas at the Royal Welsh College of Music and Drama where he was the recipient of numerous awards including the Mansel Thomas Award, the Royal Welsh Fusiliers Award and on two occasions, the Daniel Emlyn Davies Award. In 2013 he was a winner of a prestigious Lyon and Healy Award, first prize winner at the Llangollen International Eisteddfod and the winner of the Pencerdd Gwalia Competition.