Useful but can get improved
Im a music teacher and I use it almost everyday when I have free time. This is by far the best application I found but it could be better in the futur. The problem is you cant correct your errors. It could be useful to have the option to hear a wrong answer with the correct one before going to the next question. This is how the learning process works! It could also be interesting to have the possibilites to chose between chord inversions in the chords setup menu. Finaly, I think the possibility to add new stuff in the exercises would be great for the users. For example, if I want to add the thirteens in the intervals exercises it could be awesome to have the option to do it. Same thing with chords.
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Better Ears - Ear Trainer