AR GYFER HEDDIW'R BORE 

A horribly crude parody of a pronunciation guide

* F is pronounced V
* FF is F
* DD is voiced TH (dh) as in this
* TH is unvoiced TH as in think
* CH is kh as in loch
* J is j as in jam
* R is rolled
* O is as in hot (also sometimes as in thought), NOT as in hotel
* W is w or oo
* I or U is ee/ih
* Y is sometimes "ee/ih", sometimes "uh" as in 2nd syllable of sofa (in words like y, yn, yr)
* AE or AI is the vowel of high or rye
* EI is somewhere between the vowel of hay and high
* EW is e of bet plus oo of boot, but in one syllable
* IW is ee plus oo in one syllable like "eew!"
* WY in "wyt" and "glwyfau" is OOee, like fluid, NOT wee 

IMPORTANT TIPS FOR SOUNDING CONVINCING:
* Sounds are always pronounced the same wherever they are in the word, unlike English, so "faban" is VAban (two a's sounding the same) not VABuhn.
* Always roll your r's.  Every time.  Otherwise you'll just sound Cornish.

REMEMBER:
You are MUCH better off learning how the Welsh spelling works, as above (it's not complicated) than relying on some naff English-based transcription. English just isn't capable of transcribing foreign sounds clearly and unambiguously.  How would you write "mewn" in Engilsh?  How would you make the distinction between Welsh "dd" and Welsh "th"?  You start to find your transcription itself needs a transcription.  Soon you realise there's no magic bullet and it's more trouble than it's worth.  Having said that, if you really want it, here's my best attempt -- but make sure you understand how to pronouce the transcription! 

1. 
Ar gyfer heddiw'r bore, 'n Faban bach...
ar GUH-ver HEDH-yoor bo-ren VA-ban bakh

Y ganwyd gwreiddyn Jesse, 
uh GAN-wid GWRAY-dhin DJEH-sseh

Y Cadarn daeth o Bosra
uh KAD-arn dhyth o BOS-ra 

Y Deddfwr gynt ar Seina
uh DEDH-voor gint ar SYNE-a

Yr iawn gaed ar Galfaria, 
uhr yow-n gyde ar gal-VAR-ya

Yn sugno bron Mareia, 
uhn SIG-no bron ma-RYE-uh


2. 
Caed bywiol ddwr Eseciel, ar lin Mair...
kyde BIW-yoll dhoor e-SEK-yel, ar leen myre...

A gwir Feseia Daniel, 
a gweer ve-SEY-ya DAN-yell

Caed bachgen doeth Eseia
kyde BAKH-gen doyth e-SYE-a

'R aweddid roed i Adda;
ra-DHE-weed royde ee ADH-a

Yr Alffa a'r Omega
uhr AL-ffa ar o-MEGG-a

Mewn côr ym Methlem Jiwda
MEH-oon [as one syllable] core uhm METH-lem djeew-da


3.
Diosgodd crist ei goron, o'i wir fodd...
dee-OSS-godh kreest ee GOR-on, oi weer vodh...

Er mwyn coroni seion
err mooin ko-RON-ee SAY-on

I blygu ei ben diahalog
ee blug-yaee ben dee-HA-log

O dan y goron ddreiniog
o dan uh GOR-on DHRAYN-yog

I ddioddef dirmyg llidiog
ee dhee-ODH-ev DHEER-mig THLID-yog

Er codi pen yr euog
er KOD-ee pen uhr EY-og


4. 
Am hyn, bechadur brysiau, fel yr wyt;
am hin bekh-AD-ir BRUSH-ah, vel uhr ooit

I 'mofyn am y noddfa, 
ee MOVV-in am uh NODH-va

I ti'r agorwyd ffynnon
ee tee ra-GOR-wid FUN-on

a ylch dy glwyfau duon;
ah ilkh duh GLOOEE-vye DEE-on

Fel eira gwyn yn Salmon, 
vel EY-ra gwinn uhn SAL-mon

Gan hynny tyrd yn brydlon, 
gan HUN-ni tird uhn BRUD-lon