One pedal I've wanted for some time, but either had other things I wanted more (Or other stuff come up)--is an octave &/or pitch type pedal. I've tried a lot of them out over the years--but for a variety of reasons never found the right one--although some were quite good at some things--the worst things though were poor tracking, nose & an auto-tune type whine. So recently I saw some online reviews for the TC Electronics SubNUp pedal--and it looked interesting & promising So I checked it out --on two different occasions--with different guitars & basses. It fit what I wanted--so yesterday I picked one up. I just got it, so there is that "Honeymoon" period we sometimes have with gear. But it has a classic mode (Older style Octaver where if you play 2 or more notes together you confuse it), a Polyphonic mode--where you can play chords or single notes--and best of all--the Tone Print mode--where you can download an app to add a third setting--it comes with one that is an organ kind of sound. The app & the sounds are free too--so that's cool. They also have an editor for it to create your own sounds or tweak existing ones--I have't done much with that yet though) But with the sounds available (You can switch them via the app& a smartphone) this pedal will give me a lot of variety in what sounds I can get--so that was a selling point for me. I'll review it once I've had it for a while & used it more--but it is a cool pedal--and GAS is subsiding a bit (Although a pedalboard would be a great next purchase for me) I haven't tried it on my Mandobird yet--but that should be cool too.