Capoing; How high is it reasonable to go before you should transpose the piece into a different key?

[michelew]

Thanks for the advice. And so it seems that the consensus is 5 practically and 7 at the utmost. Interesting that it coincides with the harmonics.

willem wrote:

ps when you go to a other key you can alway's chose for the high or low octaaf, also for some notes,,i mean.. when a note is to high,for example a high D,you can sing that D note down..(it stay's a D you know))

Thanks Wilem - I do that, but I have such a limited range that I find myself switching octaves too often. I do it in 'House of the rising sun' for example.