0a. Playing a Diatonic Melody

You may easily figure out how to play tones on the touch interface. The playing range amounts to 15 tones in the ambit of a double octave. This is clearly visible If you decide to display the spiral on the playground (-> visual guides).

The crucial point about the combinatorics of this instrument is to figure out which tones you can play in a given playing state. In order to develop an awareness of the meanings on the tones you should try to play the tonic on the first scale degree (the red segment).

Suppose you discovered the App as a possible birthday present for a friend. Then it would be a good idea to practice "Happy Birthday". The initially selected playing state in the video is number 40 (F Ionian). Note that the "Happy Birthday" melody starts with its lowest tone. But this is not the final one, which is the tonic. The tonic F divides the ambit from C to C' into two parts. [NB: Therefore one could speak of a Hypo-Ionian mode]

You obtain the right intervals if you start with syllable So and end with syllable Do. In the video you also find a dfferent "wrong" choice.