I found a solution for the problem I'm having - which, while far less elegant than Phil Hall's solution, works fine for me.

I got some heavy duty velcro. I adhered one piece to the Yamaha logo in front of the music rest. I adhered another piece of velcro to the middle of the music rest (where the sheet music rests on). Then I take another longer piece of velcro and I fasten it to the piece above the logo and the piece on the music rest. With this second piece of velcro, I do not take off the plastic that covers the sticky part.

I know that a picture is worth a thousand words, and I will take a picture as soon as I can.

Beakybird