We really enjoyed it. Good points well made.

Vague feeling of disquiet though. Music is an extremely complex and deeply rooted feature of human behaviour - hinted at by the discovery of stone age (?) bone flutes and so on but .............. since we have been speaking for a lot longer than 200,000 years isn't reasonable to assume we have been singing for most of that time?

If we have been singing for a very long time did we need to wait for relgious and 'trained' musicians of the middle ages to work out singing in octaves? Don't children and adults do this naturaly?

Les