I'm the only one of my friends who plays ukulele, but I'd still like to see their progress on other instruments when looking at the followers/following lists and in their profile. It would be great if these views didn't just show "0" across the board when I have ukulele selected. Either just show all 5 levels all the time, or show the ones they have progress in, with some indicator as to which instrument it is.

I know the profile view already does something like this, but it only shows one instrument, and I'm not sure how that's selected – is it always the instrument that they are at the highest level for? Does it prefer the instrument I have selected if they have any progress in it? Etc. Would be good to have more clarity here, and I think that means showing all instruments they have progress in.