Possibly not entirely on topic but this is a nice site for pronunciations - it gives examples of the different languages Tolkien invented, used & was influenced by - like Gothic, Old Norse, Old English, Finnish & Welsh & there is an audio option if you want to hear them.
http://www.jrrvf.com/%7Eglaemscrafu/texts/index-a.htm
When Tolkien recorded excerpts from his works into George Sayer's ferrograph he first of all read the Lord's Prayer into it as a precaution! (it was a MACHINE after all
) That part of the recording has been lost apparently - unless someone knows different, but this site has the text & audio of someone else reading it
http://www.jrrvf.com/%7Eglaemscrafu/audio/attaunsar.mp3 so you can get an idea of what it would have sounded like. You can also hear Tolkien pronouncing words from his own languages too.