Yes, this should be easy, but I guess I'm a moron...
 
I'm using X3 Producer.  I have 5 audio tracks that I generated in BIAB.  I dragged them into track view, generating 5 audio tracks.  Cool.  I've done it many times before.  But this time the clips were not aligned to measure boundaries, so the downbeats don't align with Sonar's timeline.  So I thought I'd learn something and use Sonar to line up the beats.
 
I tried two approaches.  And combining both at once.  1) using Project | Set Measure/Beat at Now... and 2) using AudioSnap's Edit Clip Tempo Map.  (And I tried dragging the clips by about 123 ticks to line things up two but that was too inaccurate.)  No luck with any of it.  I can't reiterate all the weird results I had, but I tried for 5 hours and couldn't find the right approach.
 
It appears 80 bpm in BIAB is not exactly the same as 80 bpm in Sonar.  So there's that...  Plus the BIAB RealTracks are human generated recordings, so the beats aren't perfectly aligned to a beat grid anyway.  I don't want to stretch the imported clips.  I just want to line up Sonar's timeline so measure downbeats remain reasonably accurate over the 7 minutes the song runs.
 
The AudioSnap Tempo map has anomalies.  When I try to drag beat markers to the correct transient marker, the clip BPM goes whacky and all the beat markers get screwed up.  If I use Set Measure/Beats at Now at the beginning and end of the clip (so two points of reference) it seems like things are way off in the middle.
 
Any help would be apprecieated.
 
Thanks
 
Keith
 

I recommend you try Set Measure/Beat At Now again. Assuming the audio starts on a downbeat at 1:01:000, and you're starting over with nothing but the initial tempo of 80BPM, try this:
 
- Start playback without the metronome sounding, and count through 8 measures in your head.
- Stop the transport at at what should be 9:01 and tab forward or shift+tab back to get the Now time right on the transient for that beat.
- Shift+M, enter that measure and beat, and OK.
- SONAR will reset the initial tempo to make that beat hit the Now time you specified.
- Now you can go to the last downbeat in the project which should be pretty close to the correct bar line, and set that transient as you did the first one.
- Depending on how variable the tempo is, you can go and set more points in between to tighten things up further as needed.

80BPM should still be 80BPM, that's really strange. Have you tried simply putting the first beat on 1:1:1 and then slightly adjusting the tempo until it lines up at the end? If it doesn't do that it's somehow speeding up or slowing down in the middle.