Hi Squeak

Not quite sure what you are getting at in your post.

Manufactures load the arrangers with styles of the Target market. (Yes there will always be those that go outside the box, but not enough for the manufactures to cater for)

By and large when people mature, they like to hear what they had in their youth, which these days is more Hip Hop, and so manufactures will incorporate these styles when the target market reaches an age that that target market can afford to buy arrangers with these styles. (How many young ones can afraid an arranger, certainly not enough for arranger manufactures to cater for them as yet)

As I said it’s just a constant cycle.

Regards

Bill