Speeding up an audio loop

Speeding up an audio loop
Hi. I am an animator and make my own audio tracks via Logic.
I had Logic 8 and have upgraded to 9 in the hopes that Flex Time speed would do what I need logic to do.... (but it is a constant speed change and not a gradual change or can it do this???)
I need European Waltz Long (apples own audio loop) to get faster and faster. The animation is of a merry-go-round that gets faster and faster. Firstly the file needed unlocking and bouncing. Now it seems ok... maybe. How do I get it or any audio to change gradually over time? I tried the tempo option too, but it will not work with audio tracks. or will it? Ideally I thought Pro 9 would use some sort of hyper editor type speed and time curve but cant seem to get it to work. Is it the loop or me? Can Logic do this?
Anita Sancha
www.anitasancha.co.uk

There seems to be a problem with some of the jingles, I have tried out other jingles the jingles section of loops. They dont seem to work all the time..... They seem to be locked over and above my unlocking them in the finder info menus. Even taking the wavs into Audacity and re exporting them. Something is traveling back with them.. a mutant wav apple gene.
However I have had some luck with using the time tempo curve AND bouncing in place AND using time flex all at the same time!!! But not sure what I did. Sometimes the same loop will also bounce in place and be a different length on the track. Sometimes too when I increase the tempo the track gets longer or does sometimes shorter..
What have apple done to these jingle loops, so I can't do much with them. Or is it me?

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