I am working on a long piece which will end up about 15-20 minutes. It's pretty fluid with lots of time signature changes (which I am not bothering to enter in Sonar, btw). I would like to be able to work on the piece in sections, so that I can decide to add or subtract bars or individual beats. With a long piece like this, doing this in a seamless efficient way in the midst of composing is hard, because adding a single beat in bar 12 means everything up to bar 486 has to slide over. It works, but it's a PITA since I want to do it a lot. The Insert Time/Measures thing is just asking for disaster if I happen to check the wrong boxes or if the wrong stuff happens to be selected at the time I think of inserting. I wish it were easy to simply say "I want to add/subtract a bar of music here", and have Sonar understand that inserting a bar in some tracks but not others is VERY RARELY something I will ever want.
Anyway, what I'd really like to do is work on the piece in sections that are all part of the same project, and then string the sections together for playback. So I can add and subtract bars from one section and know that no other section is affected. I could do it on separate tracks, but then playback is confused and I get into Mute/Solo hell. I could simply add a ton of space between each section, but then I can't skip that space during playback.
Is there any way to make working on a long piece easier?