[Facts] Re: Welsh speakers please... Bleddyn, Blethyn, Blethin?
It's helpful to say the words "thy" and "thigh" in which the only difference in pronunciation is the "th" sound.
In Bleddyn, the "dd" is the sound from "thy" or "bathe." In Bleith, the "th" is the sound from "thigh" or "bath"
L'ecrivain doit se faire le voix de ceux qui n'avaient pas de voix.