I’ve heard of some people very strange things, that they are worried playing on piano black keys. This is strange for me, maybe because I don’t see anything, also colours. I’ve discovered something very great, when I was young. Black keys plays also melody in one scale. Later I notice, that this is pentatonic scale. It means, that this scale countains only 5 tones. This scale, which is in white keys We called diatonic, or hepta tonic (7 tones) scale.
There are various kinds of pentatonic scales across the world, but this, which We know very well was firstly used in China, when chinese philosophers selected specially tones, which was very beautiful and They called ‘celestial scale’.
One of my friends says: ‘I mostly play black keys.’ I sayd to him: ‘This is pentatonic scale.’ After that I heard one video about overtone singing, in which was also remembered pentatonic scale. One of guests says: ‘I feel, like in heaven, when I played pentatonic celestial scale.’ Also, some modern musical instruments, for example for music therapy, also Tongue drums are specially tuned to pentatonic scales.