ntmp,

If you listen to music somewhere in the mid part of the songs, a lot of
them there are "Soloist" performers playing their guitar, piano, accordian, whatever
their speicalty is.
This is where the soloist is a real plus for music creations.

Chorus 1...melody AABA or whatever,
Chorus 2...Soloist using realtracks(or midi) generated music
Chorus 3...melody AABA or whatever.

Also you can have soloist parts inserted where you wish too and also
set their lengths. I have not done this, but its there.

Regarding the changes, you have to regenerate after you make changes.

Keep in mind, once you have a nice song setup and melody or soloist.
Look into using the Freeze icon on far right.
Every time you hit the play button changes "may" be made to the song.

I'm a midi person thru and thru, but with the realtrack performers as my
friends, learning to appreciate their sounds and what you can create with them.

Good luck !

FrankB

Down The Street vs2015 12-03-2014
Win7, AMD QuadA8-5500,16GB,2TeraHD, Komplete 10
PG Ultra Plus 2016,Alesis 12USB, Sonar Platinum