hope i understood your question:

is the solo track being played " midi " track or an " audio "

because only " midi " notes can be changed


Mac Audiophile 2020 2019 2018 2017 USB plus previous years versions

macOS Mojave - 10.14.6 @ Aug 16, 2019

iMac i3 3.6 GHz 8GB RAM 4K with Retina display

some examples @ sound cloud done with Mac Band and DAW's : https://soundcloud.com/you/tracks