I think Diki is right as to the demographic that is/should be aimed at by Yamaha and others. While the "old farts" and ballroom dancing population is shrinking, there are more younger top 40 youngsters around. We want the older stuff and I'll bet most of us scroll right through the hip/hop/house and metal/grunge hard driving styles. But from a business standpoint, where do you put you R & D and manufacturing dollars? I imagine these decisions are not just sales driven , but demographic and competitor driven. Looking toward the future, the arranger dollars are better spent on MOTL as the market shrinks. And the big money spent on current and future direction of music and the related technology.

That being said, the TOTL arrangers that we have available to us now may be the highest level we will see. It's not a bad lot to choose from. Their may be changes due to technology- a music rest with ipad dock built in, more touchscreens, but not huge improvements.

When I was a kid I listened the music of my Father that was always being played in the house and grew to like, appreciate, and perpetuate it. My kids are ages 19-26. They have no connection to "our" music even when growing up with it playing in my house. We are only one generation away from the "old fart" music disappearing. So T5-no. It is about business, not us. Put some dollars into MOTL arrangers for us until we are all in diapers again..
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The older I get, the better I was..