| 摘要 |
FIELD: music. ^ SUBSTANCE: invention concerns keyboard musical instruments, particularly unconventional piano keyboard. Unconventional general piano keyboard includes a row of large keys and a row of small keys. Small key row is continuous, and both key rows are monochrome. All 12 octave sounds are produced by keys of the two rows in turns over 1 half-tone pitch. ^ EFFECT: unified finger notation of piano keyboard. ^ 1 dwg |
