>> Freezing songs is a good way for instantanious live playing. The only thing for me is: it costs so much of additional disk space. That's why I was happy to find this wait-for-the-pressing-of-a-key option. This would help me at least for some situations.
But I might take the couse of freezing and unfreezing songs for actual live playing.

Freezing songs (using version 2010) doesn't take up disk space. The frozen songs are still tiny (about 50KB).
(there is another feature where you 'freeze' the whole arrangement to the audio track, which saves it as audio. But that one isn't used much now, with the new freeze track feature in 2010).

Have Fun!
Peter Gannon
PG Music Inc.