Is there a sight-reading/music theory app that you can use with a physical keyboard/piano? I apologize if my question is confusing, but this is what I'm looking for in a nutshell: I'd like an app that allows me to practice sight reading and/or music theory skills (scales, chords, intervals, etc) by playing my keyboard. I do NOT want an app that relies on an on-screen keyboard. (It's fine if the app has one, but I really need to be able to use my REAL keyboard with the app.) Reason being that I'm trying to develop the muscle memory as well as train my ear, and playing a touchscreen piano will not help me at all with gaining muscle memory for a physical keyboard. Ideally, I'd like an app that gives you a note, interval, chord, scale, etc. and asks you to play it back on your keyboard. Does anything like this exist? I have spent hours downloading countless piano apps and music theory apps and have yet to find something like this. On a related note: do any of you have any other recommendations as far as music theory / ear training / sight reading apps go? I'm mostly interested in free apps, but I'm willing to pay for one if it's really good. I would REALLY appreciate your help!!