Trefeglwys has a strong connection with music, one of which was through the composer, John Ashton. John wrote a number of hymn tunes published in Llyfr Tonau Cynulleidfaol , Caniadau y Cysegr a’r Teulu, Cerddor yr Ysgol Sabothol, and songs in Miwsig y Miloedd.
Here is some sheet music, which John Ashton wrote in 1857, titled ‘Trefeglwys’ and ‘Llanbrynmair’:
The parish raised a number of John Ashtons but this one was born in Oleuddu. By trade John was a shoemaker but through accident he changed his occupation and joined the police force. John emigrated to New Zealand in 1874 died on the 25 December 1896.