Today Google has released a doodle as homage to Oskar Fischinger which includes a page to make your own composition by clicking dots representing notes.
I can't recognize the notes but I noticed that any combination produces beautiful chords and that clicking more notes improves them, no matter which ones you choose.
I want to know how it works. Why are there no dissonances? How can it be that there are only harmonious chords?
I guess that they do so by only allowing notes placed at fitting intervals (thirds? fifths? octaves?) and not dissonant ones (seconds? fourths?). I also noticed that the bottom line and the fifth one yield the same notes and I suppose that the notes might be Do, Mi, Sol, Si, Do (C, E, G, B, C) in the bottom rows, but from here upwards it becomes more complicated.
Then my questions are:
- How does this page work to always produce beautiful music?
- Is it just how the notes are chosen or is there anything else?
- How are the notes chosen?