Spalding very good post.
We can agree on segment 1 3 and 4.
I don’t know that segment 2 would not be a part of segment 1 but has 76 keys.

Now having said all of that, witch segment does the Roland G1000-G70, Korg PA1xpro-2Xpro, Ketron SD1+-Audya and Lionstrack Mediastation fall in to?

See you have just explained Yamaha’s fragmented market the way Yamaha chooses to fragment the market.
But the real question is is the Yamaha market that much different from the Roland, Korg, Ketron and Lionstrack market?


And I think you have hit the nail on the head. The issue is not 76 vs 61 but the issue is size and weight.
I have always said that if Yamaha created a 76 key PSR S910 successor with the size and weight of the Casio WK7500, it would sell even more than the PSR S910. And it would not affect any other Yamaha fragmented market (your segment 2) because as you said they are for different users.
A 61 key T4 does not affect the market of 61 key PSR S910.


One statement that was troubling was your last paragraph.
Correct me if I am wrong but it implies that Yamaha will always make the right decision and all other manufacturers have made the wrong decisions..




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I have shortened my ID to TTG