Mynydd Epynt
Musician Gruff Rhys has a song called 'Epynt' after the mountain , which features on his first solo album Yr Atal Genhedlaeth . Also the song context is about money , with the 'E' standing for the Euro , and 'pynt' sounding similar to the Welsh word for Pound . 
<triplet> Yr Atal Genhedlaeth <subj> Gruff Rhys <obj> performer