Ian what I am talking about is recording, arranging & playing all musical parts to achieve custom Vocal backing tracks that could never be done live on any arranger KB due multiple track part limitations ...
especially over and over again each night where you always want the arrangement to sound exactly the same,...including all parts, & breaks.. This is where the real musicianship happens in the studio and then be able to present that work on stage successfully. It has been done like this and is the standard for thousands of
Live venues & Tv shows, commercials, & major Movie background music worldwide. There are some super talented Musicians working in studios everywhere creating the coordinated background tracks for Broadway shows, Disneyland shows, etc,. etc, .......IMO Live style play using an arranger doesn't exactly fit into these applications.
There is a place for an arranger KB use,....and then there's many other musical venues that do not require the use of an arranger its as simple as that,.....musical creation in ANY shape or form and the enjoyment of those who listen have NO Bounds and day after day more new way to create are invented and that is exciting for the future of Music.