I hope bakers will make intuitive way in the future to share core reference audio files from point A to point B between two desktop Cakewalks without bouncing around full project, directly from Cakewalk. I guess it would be natural for people in Bandlab community to take advantage of fantastic desktop DAW that is free.

Starise, No, no real time online DAW:) That is way in the future. If this process is streamlined within Cakewalk it would be ideal for me, until we achieve magnificent internet speed that would eliminate latency :) Maybe it is already here and I just slept through the process? So single mixed stereo file in the project as a reference point would be something I would be comfortable with. If collaborations are 50/50 or such, then a more complex solution could work, like sharing complete bun files, but that might not be a universal solution because of various plugins and many other good things that might differ between 2 or more computers. I mix all of the audio to a single stereo track and would send a Cakewalk bundle file with that single track to the musician who will record his stuff on reserved tracks and send back to me for a final say/mix.

Example: Lets say I have a Cakewalk project that I want to add live harmonica. Like a ghost of your original project, but simplified to the bone and reverse process to merge 'received' file to original project. My hope is that collaboration can be done or at least have a streamlined option in this manner: If you agree to someone trying something with your tune, you send them mixed Cakewalk project in bundled file with all audio mixed in single wav and tracks reserved for the person who is going to add to it.

Cake walk bandlab