The lyre and the music of the ancients

What did the ancient liturgies of the Hebrew temple sound like?  We have some likely lyrics of early Christian hymns, but what about the musical accompaniment?  These questions came up earlier today as my publisher began to create a "trailer" for my novel's website consisting of images and background music evocative of the first century world of Paul.

The easy answer is that we don't know much about the music of our Judeo-Christian ancestors.  But then we happened upon the website of Michael L...