The way of finding out what you need for a certain instrument or main melody from an audio file such as a cassette tape through good aural discrimination and recording the score separately or saving it in a file such as a midi is called picking the score.

Pickup music is a skill that requires music theory, and in ordinary life it requires a strong sense of musicality and a very fast recording speed. Nowadays, computer technology has evolved considerably, and a wide range of software has been developed to allow people to pick out music.

The predecessors of pentatonic music can be traced back to the medieval Newham notation and the quantitative notation. Neumatic notation is based on horizontal lines, with symbols indicating the pitch of the tone, but not the length of the note. From the 7th century onwards, this notation appeared in European Catholic churches, initially using only one line to represent the pitch of F, and gradually developed into four lines in the 11th century by Guido of Arezzo.

Specifying the pitches as d, f, a, c, and painting the f money in red and the c line in yellow (which later became the origin of the soprano and bass clefs in pentatonic notation.) In the 13th century, some people used the fifth line, which became the precursor of pentatonic notation. In the 16th century there was the addition of lines, which completed the record of pitches.

Baidu Encyclopedia - Plucked Sheet Music