I often times try to lay a tempo map over a free play performance. A guitar or a piano or a drum set for example.
I don't want to change the tempo of the original performance, I want to set the grid on top of the performance so that I may use MIDI freely to add other sounds using all the conveniences of MIDI on a grid.
In my experience the existing tools like "Set Measure Beat to Now" etc. act capriciously and often times what seems like a normal expectation results in warning dialogs that suggest you have just buggared up your tempo map.
I think it will be great when someone finally digs in to those functions and makes them as brainless and painless and they have a potential to be.
I try to start at the beginning and work along along the timeline as that seems to get the best results but often times it seems like it would be helpful to start at the last beat and then work on the starts of verses and choruse and then work your way in to the details... but that is a guaranteed way to end up with a warning dialog.
It seems like some behind the scenes investigation regarding why the calculations are "out of bounds" would be easy and has probably already been done years ago. It seems like implementing solutions for the frequent "out of bounds" warnings have never been implemented.
When I speak with some of my full time studio friends about this they tell me that they just use markers and ignore the MBT grid. Then they mention that they abandoned thinking in terms of MIDI even if the source instruments are MIDI... they just capture performances as if all instruments are, well, instruments. I ask them about this in hope of learning a better way to do it and they just shrug it off as a non issue because by and large they work with players that aren't asking for the ability to edit on a grid.
The players I work with could benefit from an ability, on my part, to quickly add extra midi based parts on a grid... because they don't have access to extra instrumentalists and their performance fees. I don't have the chops to play a Kontakt horn section free play on a keyboard but I can write up a part that will work. That's when having a grid sitting on top of a free play track could be a huge benefit and really put some power in to the DAW. It would let me help people.
I continue to work on laying grids out using the tools as they exist but it is frustrating, slow, painful, and rarely works as I'd hope.
I am still eager to integrate and utilize the best of grid based soft synth and sampler technology with free play acoustic music but it seems like a constant struggle and it seems as if the tools to make it happen have simply never had the extra dev time to make it as easy as it seems like it should be.
I get the impression that the latest Cubase version has some enhanced tools for this. I also recall that in the past that our forum user dmbaer mentioned he was developing a free standing tool for this purpose.
I'd sure like it to become super easy to snap a grid onto a free played performance so I could enjoy the best of both worlds and be able to consider it all just one happy way to manage projects.
It would make a DAW seem up to date.
I hope some of that makes sense.
all the best,
mike