But here is where I think it falls down, compared to a semi-weighted 76...

It is by far the better keyboard to play piano on, and Rhodes too. But after that, that's it. 88 wood is not the best action to play almost every other sound in the arranger on. So for straight ahead pianists with little desire to play any other sound, it's perfect. But for the jack-of-all-trades arranger user, it is too much of a compromise.

As is a 61, IMO, which severely restricts the real two handed piano player (and the inclusion of Piano Mode triggering on most arrangers seems to indicate that the manufacturer kind of expects it to be used this way, at least by SOME of it's users ) from any kind of normality. So what's the answer..? Of course... the 76 semi-weighted. Big enough to play most piano parts on, light enough action to play all the OTHER sounds on, heavy enough to not feel like you are playing on an organ.

The arranger is ALL about compromise. I feel like the baby bear; too small.., too big.., JUST right!
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An arranger is just a tool. What matters is what you build with it..!