I record session singers to produce rehearsal tracks for my large (300-strong) choir. I create orchestral backing tracks for the choir. And for the last year, I've used Cakewalk to assemble three albums of my choir singing "virtually" - each singer has sent me individual recordings of them singing their part (recorded on phones and webcams, mostly), and I've brought them together, mixed and mastered them in Cakewalk. Each one has been a monster project (the biggest had 5,500 recordings to mix), but Cakewalk has made it a breeze!