It's my suggestion you export multiple .WAV files from BIAB and stitch the audio files into your full length song in a DAW rather than attempting one .WAV file that contains all the elements of the song that you cut/paste/copy to increase the length of your song. Here's why. The elements of your song you are replicating are exact duplicates of the original audio you're replicating. What you are doing is looping the same audio. So if you copy a verse and paste that verse into another verse, it's the same audio. Whereas if you construct your song in BIAB with each verse having it's audio generated and rendered where each verse is constructed by its own .sgu file, no verses will be exactly alike. Your song will sound much better and also more human. The result will carry over into every section of your song, be it intro, chorus, verses, bridge and outro.

Thanks for your suggestion, Charlie, but this would not be beneficial for demos of my songs that I take to my producer because he'll be creating his own arrangement for those songs. So, going through the extra effort with these additional steps would be a waste of time. However, your suggestion is great for demos of my songs that I want to share with other people besides him---especially if I'm pitching a song to an artist, label, singer, etc. with the goal of having them acquire or license it for their use. I have a couple of song demos that I need to redo in BiaB using your suggestion to make them sound even better than they already do sound.

<<< My concern from the beginning of my use of BIAB was (and still is) that piecing together chunks of short BIAB generated song tracks into a single, long song arrangement would result in odd and/or glitchy audio seams occurring at the junctures of those chunks. >>>

This is one of the unique features of the intelligence of BIAB generated audio and should never be a problem or concern. Learning and applying proper multitrack recording techniques will virtually assure successful smooth transitions.

The key phrase here is "Learning and applying proper multitrack recording techniques . . . ." This is going to take some time for me to do as I become more and more familiar with the features and capabilities of both BiaB and RB by experimentation, by watching the tutorial videos on this website and on Youtube, by reading the manual as needed, and by reading the discussions in both the BiaB forum and this one.

<<< No because a midi file wouldn't have all the chords.>>> BIAB automatically decodes and populates the Chord Chart. Since you've written the song, you will immediately detect any errors and can manually correct those you find.

Silvertones made the same comment about RB, to which I responded as follows:

"Thanks for the suggestion. I may try that with my next song, but I doubt that RB's chord interpretation will match the chords that I've come up with from my own analysis of the melody and experimentation on my guitar. Even after I've figured out all the chords to my songs (I do that last after I've written the melody and lyrics and entered them into MuseScore), my producer will always recommend a few chord changes at various locations in my songs. Sometimes, he recommends that I change a melodic section to eliminate a chord or two or to change a strong chord progression to a weak one, as he did with the last song I gave him."
Tom Levan (pronounced La-VAN)
BiaB 2021 Win UltraPAK Build 833, Xtra Style PAKs 1-11, RB 2021, Windows 10 Pro 64-bit, Intel Q9650 3 GHz, 8 GB RAM, 500 GB SSD & 2 TB HDD, Tracktion 6 & 7 (freebies), Cakewalk, Audacity, MuseScore 2.1 & 3.4, Synthesizer V