never a z sound. The digraph `kh' is the guttural of "loch" or
"l'chaim". The digraph 'gh' is the aspirated g+h of "bughouse" or
"ragheap" (rare in English).
3. Uppercase letters are pronounced as their English letter names;
thus (for example) /H-L-L/ is equivalent to /aych el el/. /Z/ may
be pronounced /zee/ or /zed/ depending on your local dialect.
4. Vowels are represented as follows:

/a/
back, that

/ah/
father, palm (see note)

/ar/
far, mark

/aw/
flaw, caught

/ay/
bake, rain

/e/
less, men

/ee/
easy, ski

/eir/