Hi Scott, it seemed to me the comments about your posture were made out of love and care for you, not criticism.
I retired from the corporate world 2 years ago and took a position here in FL playing keyboard at church. From playing maybe 2 hrs a week, I suddenly started playing 20 hours, and ended up with tennis elbow, which has been plaguing me now for 18 months. One of the contributing factors was said to be that I had the keyboard too high. So just be careful!!
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Graham
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Graham, Korg Pa1000, Korg G1 Air, Countryman E6, Roland BA330, 2 x Roland CM-30, , Mackie SRM150