mattdaltonrules I like your thinking, the only issue is yes if you get to a quick ball park area your next song exists I still want to accurately choose this next song without touching the screen by finger using only the expression pedal, so that’s why I would prefer if the speed of scroll is affected by how far you move from 64 to either 0 or 127 depending on direction of movement from centre point and a reversal of direction stops the movement this then chooses the next song if you missed the correct song the pedal is reset to the centre point as you stop , now to start a new search around that point you need to bring the pedal to centre point to trigger a new search start but now you are in the ballpark of the song you need and a slight movement of pedal around the 64 centre point will give you a nice slow movement of songs so you can easily stop on the exact song you need all you need to do is move your pedal in reverse as you hit the song you need.
This logic gives you fast search if you have lots of songs by using the extreme ends of pedal and Very slow accurate movement by slightly moving the pedal around the 64 centre point .
And a simple way of choosing a song by reversing the pedal movement which acts as a stop not a reversal , a new search always starts from the centre point of the pedal , a press back down scrolls the list down and a press forward on pedal scrolls the list upwards.
The speed of scroll depends on amount of movement on pedal.
Changing direction on pedal STOPS AND CHOOSES NEXT SONG.
A movement to centre point of pedal starts a new search.
So you can’t automatically reverse search you always have to start a new search from the centre of pedal position.
This then makes the pedal all you need to quickly hunt down that song you need next even if you have a 500 song playlist .
I doubt any bands or solo artists would go past 300 to 500 songs in their repertoire, DJs are the only ones that might have thousands of songs but they can touch the screens anyway so it is not a major problem.
Not touching the device is the challenge for all those that also have instruments in hands.
If anyone can think of some other way please share as it would be great to be able to easily choose the next song while performing.