How to change tempo without affecting the music (only the grid)

Question

This is a very basic problem. I have been laying songs (audio files) onto logic and recording vocals over them, and now that I am finished with the recording, i realize that in order to copy and paste the choruses EXACTLY throughout the songs, which can be quite arduous the way I have been trying to do it, one needs to have matched the proper tempo with the the music being used.
I neglected to do this at the start of these projects, and it has come back to bite me because when I try to change the tempo now, it completely throws my vocals out of whack because my voice is off beat. This is where the problem lies. I know had I addressed this at the beginning, I would be smooth sailing.
I also tried setting the tempo at the proper rate on a new logic project, but when I drag everything over from the original project, the same problem occurs.
In reality, I need the grid to match up so I have the proper means to line up my vocals exactly so the choruses are consistent throughout the song (obviously I can do it manually in a way regular listeners might not notice, but Im dissatisfied with that, I want it to be perfect)
Again, I know that if I had matched the tempo properly with the audio file (the music) at the beginning, there would be no problems, and I'd be able to record over it and then use the bars to align my vocals perfectly.
If some one would be so kind as to get back to me on this, it would be highly appreciated

Answer 1

You're close!
1• Open the automation event list on a track that contains automation. You will now see what looks like a normal event list but it's displaying only the automation data on that track
2• Click the hierarchy arrow to take you "up a level" so that the automation event list (AEL) now shows you the names of all of the automation regions within the (hidden) automation arrange page. What you'll see is a list of items all starting at bar 1 1 1 1 called "Automation". (If the position of the items is not 1 1 1 1, you have a problem. See below).
3• Select All (CMD-A) and then use whatever method you prefer to SMPTE-lock them (menu item or key command)
= OR =
Do Step #1. Then hit CMD-1 to open a new Arrange window. When you do this right after opening an AEL you will see the automation arrange page. Move the AEL out of the way or simply close it. Then, similar to Step #3, select all of the automation regions in the automation arrange page (CMD-A) and SMPTE-lock them.
Note: if your automation events are not all starting at 1 1 1 1 then it's an indication that your song's start marker was moved to before bar 1 and you're on your way to having a corrupted song.
Final caveat: don't attempt to write new automation while the old automation data is SMPTE-locked. It'll create a nice lil' mess. So after you're done changing the tempo (or whatever your reason for SMPTE-locking regions and automation), the first thing you should do is unlock them both before proceeding with any additional recordings. It's very easy to forget that the automation data is locked because you can't see that it's in a locked state unless you're looking at the AEL or the automation arrange page.
Message was edited by: iSchwartz