Hi Mike, The problem with 76 Keys is that it will make the unit longer and heavier and there have already been many 'complaints' about weight and size..........
Personally, I'm quite happy with 61

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Willum
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Willum

After silence, that which comes nearest to expressing the inexpressible is Music.
Aldous Huxley
( especially when the music is played on a KN7000....)