RB3’s harmonies engine is a bit broken when it comes to octaves. Try and author it as it should, different octaves, test it in game and try to sing HARM1 solo. If it works, fine, if the arrows goes randomly to both tracks, go back and switch to a single octave.

Ok, gotcha but what about parts where there is just one singer (ex. singer 1 sings verse 1 at one octave then singer 2 sings without singer 1 at a lower octave does verse 2 leaving blank space at the top of the vocal chart.) I’m guessing it should have something to do with “lyric shift” or “range shift” but didn’t see that on the docs.

Range shifts are mainly for songs starting out very low or very high and then switching, and even then it throws you off because you lose the visual reference. Only use the shift when you have large portions of the song in the same range and only if without it the slides look too difficult to identify.

Just some tips from a non-author but top singer:

a. Don’t use the shifter. It never helped me once and caused me to sing very poorly on simple songs. The only time I think it is any good is if the song has like one or two notes that are much different than the rest of the song. Just shift to and back for those notes only to avoid having a 6 pitch song displaying 16 pitches because one note was 10 pitches higher. A good example of this is “Here I Go Again” by Whitesnake on the RB3 disc. Except tt shifts up for the very high note “Here I go!” but it never shifts back down so the last half of the song is very cramped up.

b. For everything but those 1% of songs described above then just chart the song so that all pitches can be shown through the entire song without shifting.