A piano usually has 88 buttons. These include 52 white and 36 black keys, which has a range of 7 1/4 Cover octaves. Das Piano, which Bartolomeo Cristofori originally invented in Italy, only had 54 buttons. One 1890 the modern keyboard continued 88 keys for 7¼ octaves (from 2C to C5; 27,5 Hz to 4.186 Hz*). The human ear can hear frequencies in the range of approximately 20 Hz to 20.000 perceive Hz, but the upper limit, which the brain can still consciously distinguish, is approximately 4.000 Hz. Even if the keyboard were expanded, by giving the piano more keys, the additional tones in the bass range would only be a dull rumble.
A piano usually has 88 buttons. These include 52 white and 36 black keys, which has a range of 7 1/4 Cover octaves. Das Piano, which Bartolomeo Cristofori originally invented in Italy, only had 54 buttons. One 1890 the modern keyboard continued 88 keys for 7¼ octaves (from 2C to C5; 27,5 Hz to 4.186 Hz*). The human ear can hear frequencies in the range of approximately 20 Hz to 20.000 perceive Hz, but the upper limit, which the brain can still consciously distinguish, is approximately 4.000 Hz. Even if the keyboard were expanded, by giving the piano more keys, the additional tones in the bass range would only be a dull rumble.