Hi Paul, welcome!
Both Auto-Align and Auto-Align Post were designed to fix comb-filtering and phase-related cancellations caused in a multi-mic recording of a source.
AA2 was built with music in mind, while AAP2 was designed for post, where mics/subjects are moving.
In your case, you should get great results aligning the piano with AAP2 in Static Mode.
Some Resolve users reported issues on the forum – we’ve since fixed those, and we’re still improving AAP2, so if anything comes up, we do our best to fix it as soon as possible.
I would suggest starting a 14-day trial using the latest Auto-Align Post v2.2.3 Beta, which includes many Davinci-related fixes:
Workflow-wise: once your timeline is cut and synced, you can start by aligning one track to its ref. That shouldn’t take long. Then move on to the next track. No need to relink clips – AAP2 will mute the source track and create a new aligned track at the bottom of the timeline.
For best results, run AAP2 before noise reduction/voice isolation.
Currently, those processes won’t carry over automatically, so you’ll need to copy them manually if needed.
If you have any questions, feel free to reach us at support@soundradix.com.
Thanks,
Oran