The PSR Tutorial site has added a new section just for the SX700 and SX900 keyboards to its site. https://www.psrtutorial.com/forum/index.php/board,91.0.html

Enjoy,

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)