Piano Trainer ver. 1.7 published

We published Piano Trainer ver. 1.7. This version is conceptualy different from the previous ones. Previous Piano Trainer app was targeting to aural learning, what was an experimental concept, but not practical in terms of everyday routine. Using it we gathered interesting and useful findings and could aim the whole project more practical direction combining the best of traditional approaches with modern optimized ones.

It wouldn't be expedient to name everything what has changed and what is new. We just refer to new Tutorials presenting all the possibilities in a compact and optimal way.