Hi Paul,
I'm a bit late getting back to you ---- sorry!
I have to say that I never thought about happy or sad sounding voices and your example of vocals on adverts set me thinking.
I'll go with Chris's reply that SoV samples are not generally happy ones - he's got a better pair of ears than me
Not sure if that was the question I didn't answer but the only other one I suppose is about doing a whole mass!
Funnily enough, this particular track started life with a completely different plan (but then again, don't they all?).
I just wanted to do something simple based on early New Age electronica that started oozing out when the DX7 was first released. I simply dropped the Gregorian monks phrase in and it went in a completely different direction.
I don't think I know any real monks to find enough phrases to do a complete mass.
Anyway, I'm pleased that you appreciated the track.