Merge pull request #1 from svitan0k/v2

- Greatly improved the core part of the program, the one responsible for searching for the answer. I think I got it as close to fundamental music theory as possible. Previously results were enharmonic, meaning, they were the correct, but the names for the notes were not unambiguous. Now the alphabetical name for each note in the scale is determined based on previous notes in the scale, giving the unambiguous answer.