I'll post a phonemic transcription of the Manx words using X-Sampa. The exact sounds, of course, vary from speaker to speaker, but this should enable everyone to pronounce the Manx intelligibly and accebtably.
Manx spelling, as you probably know, is based on that of 17th century English. It is, essentially, the result of attempting to write down Gaelic sounds using English orthographic conventions. So Manx spelling suffers from all the quirks and irregularities of English spelling, and then some. Which makes it look wonderful, but also makes learning the language somewhat tricky. There are perhaps not so much rules as tendencies. That said, here are a few basic guidelines:
- The single vowels, and ee, oo, are pronounced more or less as in English. Manx also follows the English convention of using a silent e at the end of words to modify the sound of the preceding vowel, for example a_e usually represents [e:] and o_e usually represents [o:]. These long vowels should not be diphthongised into [ei] and [ou], although many Manx speakers do this due to English influence. But try to keep your vowels clean! :-)
- Double aa represents a long [E:]; many speakers now pronounce this [e:]. This sound is usually the Manx development of an older Gaelic long á or ó.
- The digraph ey at the end of a word represents [@], i.e. the unstressed vowel which would be written a or e in traditional Gaelic orthography. Remember that e alone at the end of a word is usually silent in Manx.
- The letter y generally sounds like [I] when stressed, and [@] when unstressed.
- The sound [x] (i.e. Gaelic ch) is written ch at the beginning of a word, and gh in the middle or at the end of a word. At the beginning of a word, gh represents [G] (the voiced equivalent).
- The digraph ch can also represent [tS]. In the middle of a word there is often a t added: tch. This results in ambiguity in initial position, as ch at the beginning of a word can thus represent either [x] or [tS]. This is where knowing some Scottish or Irish Gaelic will help: it is pronounced [x] when it represents the lenition of Gaelic c, and it is pronounced [tS] when it represents Gaelic slender t.
- Double ll and nn can represent either [l] and [n] (i.e. broad), or [lj] and [nj] (i.e. slender). Unfortunately, there is no way of predicting this and it is necessary to learn the pronunciation of the individual word.
- When n and m occur at the end of a word following a stressed vowel, they may be preoccluded, that is, preceded by a short “d” or “b” sound, respectively. So, for example, lane ("full") is pronounced [lEdn], which sounds somewhere between the English words “lane” and “leaden”.
- The digraphs th and dh are pronounced identically to t and d. The digraph lh is used to represent [lj], but sometimes it also represents [l]; again, here it is necessary to just learn the word.
- When occurring in the middle of a word, dd, ss and tt are often softened to [D], that is the sound of voiced th in English “those”.
- The letter r is often dropped after vowels by many speakers today, due to English influence. However, it's better to pronounce it if you can.
That should hopefully be enough to get you started!