Dyffryn Nantlle: Mwy na thebyg yr ardal mwyaf Cymraeg yn yr byd/More than likely the most Welsh area in the world…
I see my favourite valley has its own anthem now with Bryn Fôn and the locals in full voice…Lovely closing shot at the end of, Mr. Huw Jones farm at the foot of Tal-y-Mignedd where I stay a couple of times a year…Dwi’n dwli Dyffryn Nantlle!
Da iawn! Diolch. Dwi’n i hoffi i fe yn fawr iawn. 
Just stumbled upon this on Radio Cymru: it seems Graig, who learnt Gymraeg as a second language, came up with the idea of an anthem in homage to Dyffryn Nantlle. Here he tells his story…and talks about the valley. Good practice for hearing the local accent.
“Dogfen yn dilyn taith Craig ab Iago wrth greu anthem y bydd Dyffryn Nantlle a Chymru yn falch ohoni. Craig ab Iago’s quest to write a song for his adopted home of Gwynedd.”