Create a tempo track from the audio by using either:
-The timewarp tool
-Merge tempo from tapping
-The C6 tempo recognition tool
Thank you for your reply.
Of these three what have you found to be the best system? From reading the manual I would guess the C6 tempo recognition tool would be best with just drum tracks.
The tempo tapping tool sounds like a lot of editing for four-minute song.
That leaves time-warp.
So you would set up an approximate MIDI tempo, import it, then apply the time-warp to the MIDI track, leaving the Audio in ... [I get them mixed up sorry 'linear' or 'musical' mode] and align the MIdi visually say on beat one of each bar, then go back over and tidy up the synchronisation for beats two-three four etc or other accents> Does that sound like the right work-flow? Do you normally work this way?
I'm interested to hear a way to do this right that isn't a lot of work for a 4 minute song!
For extensive discussion on how to do this, you may want to google search this forum for posts by vic_france and crotchety, throw the words "free-tempo" or similar in there to narrow down the results.
FWIW, I always do what you do - free tempo a keyboard recording, then apply MIDI parts to it. The way I do it is to :
1) Create a tempo map that accurately follows the audio. I do use "Merge Tempo From Tapping" because the automatic tempo detection doesn't work that well for my piano audio, but as you pointed there are other methods. I then tidy up the tempo map with the Time Warp tool so it exactly follows the audio.
2) I then get the audio to play at a fixed tempo, temporarily so I can overdub MIDI. To do this, I apply the "Set Definition From Tempo" tool ( after making the exact tempo map, above!), then deactivate the tempo track and put it at a fixed value, 90 or 93 beats per minute, etc. (i.e., at the tempo that the audio would be at without the nice free-flowing tempo variations). When the song is played back now, the audio plays at a fixed tempo.
3) Now that the audio plays back at a fixed tempo, it is easy-peasy to overdub MIDI parts.
4) Once I'm happy with the MIDI overdubs, I reactivate the tempo track, the audio will go back to its free-flowing tempo, and the MIDI will of course follow it.
Of course, if you don't want tempo variations in the audio, you can stop at step 2 - the audio plays back as if it were recorded to a metronome.
Hope this is helpful!