Tonic - AR Chord Dictionary

I just wrote a three star review saying that I was not able to get the highest key to align. After I submitted this review, I went back into the app and tried again and succeeded! My only issue now is that the dots are not centered on the keys correctly, which makes it difficult to play chords while looking at the screen, because I’m not sure what notes I should play. I tried realigning by standing at the center of the keyboard and pointing the camera at the highest and lowest keys, but that did not seem to help much either. As I said before, this app has a lot of potential. It just needs to have some minor bugs fixed.

This is a really cool idea and seems to work pretty well as I have played with it for a few minutes. I have two comments though: When calibrating the dots on the highest and lowest keys, you need to sit in the middle of your piano bench from the playing position and just turn to the left or right to target the keys. I made the mistake of moving my body position too much trying to get the target lined up with the key and it threw off the calibration. Maybe a little more direct instructions on how to do that might be helpful to make the process more friendly for first time users? I noticed a bug where some of the chords with many sharp keys (roots C#, D#, A#, F#, etc) have the diminished triads and augmented triads switched in the notation. The augmented chord shows up in the diminished box and the diminished in the augmented. Other than that I’m sure this will be a helpful tool for a lot of people. I plan on recommending it to my piano students who are excited about learning chords. Thanks!

I just wrote a three star review saying that I was not able to get the highest key to align. After I submitted this review, I went back into the app and tried again and succeeded! My only issue now is that the dots are not centered on the keys correctly, which makes it difficult to play chords while looking at the screen, because I’m not sure what notes I should play. I tried realigning by standing at the center of the keyboard and pointing the camera at the highest and lowest keys, but that did not seem to help much either. As I said before, this app has a lot of potential. It just needs to have some minor bugs fixed.

This app is amazing. It gives a great reminder to my prior piano memory and opportunity to anyone trying to learn. It will allow for anyone new to easily learn chords. Fantastic job, I’m well impressed on the work as a developer myself. It allows you to learn and easily adapts to the camera position you place it in. There was likely good testing on this app (although small stuff like small keyboards may show sharp notes out of place); but it is one of the best implementations of AR I have seen thus far. Bravo.

Doesn't align well at all to piano keys. Unfortunately that is the one fundamental thing this app needs to get right to be functional. The major issues I'm seeing (Yamaha CP-5): - Dots slide around after calibration; they do not maintain the positions you set. - The target for placing a dot can become permanently rotated if you start calibration from across the room and then walk over to the keyboard. Workaround is to be standing at your keyboard when to start, which may seem obvious, but I initially downloaded this app while sitting on the couch. I actually think they should endeavor to detect your keyboard when you point your camera at the full 88 keys, or some subset that includes an edge. This shouldn't be too difficult. They could then auto-calibrate and you wouldn't have to manually place dots. It appears that they are not tracking any part of the keyboard and are mostly relying on AR surface recognition to track the dots that you set. The result is poor tracking & accuracy. 3 stars for the idea -- looking forward to updates!