Roland and Yamaha have always had VERY different continuous controller electronics. Switch polarity was always the same, but the potentiometer specs are radically different. You have never been able to plug a Roland expression pedal into a Yamaha and vice verse and them work well. They do work, but the throw is completely off, almost all the volume change occurring in one area of the pedal’s travel.

The same principle would apply to sustain pedals that use potentiometers rather than switches (to be able to do half pedaling). However, you might still be able to use the Roland Triple pedal if you cut off the tip ring sleeve (TRS) jacks and replace them with normal TS 1/4” jacks… as long as you only ask them to do switched functions.
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An arranger is just a tool. What matters is what you build with it..!