The present application relates to a twelve-
semitone isomorphic keyboard or soundboard group, which adapts to the natural arch of five fingers by using color allocation layouts, tone key shapes, concave-convex touch recognition points, etc., so as to achieve the technical effects of quickly identifying note positions, and simplifying and unifying fingering. Correspondingly, the structures of transmission apparatuses of a
piano and an electronic organ are also changed. The present application further relates to a matching twelve-
semitone independent-note isomorphic notation method, and
software and apparatuses for music
score creation, music
score singing and note singing. A
system endows a music
score with various
pattern identification detail features to match the music scores to note positions of a
musical instrument on a one-to-one basis, such as a twelve-
semitone pitch scale, a series of
octave clefs, opposite notehead-stem directions between lines, zigzag bar lines and four sets of note systems, making music score information intuitive and concise, and reducing the
workload of brain conversion during music score recognition, and thus increasing the
reaction speed. The
software and apparatuses for music score creation, music score singing and note singing are powerful tools for recording
vocal music in a music score form and teaching music score singing.