Lazarus....you said.
Actual SONGS will always require substantial human creative input.

i'm not necessarily disagreeing with you.
but some might say too many cooks spoil the broth also.

frankly haveing done loads of songs in my life solo and with
others, i'm not sure there is a perfect solution.
sometimes too many egos get in the way.

frankly i like the way the pg user showcase seems to work.
i like how its friendly and collegial.

best
om

my songs....mixed for good earbuds...(fyi..my vocs on all songs..)
https://soundcloud.com/alfsongs
(90 songs created useing bb/rb)
(lots of tips of mine in pg tips forum.)