1. It means that you rely on your listening and music theory foundation to record the music score of the melody you need in this song without the original score. Using good auditory discrimination ability to find the certain musical instrument or main melody you need from the tape and recording the score at the same time is called tabulation.

2. Music score is a method of recording music by printing or handwriting and using symbols. Different cultures and regions developed different notation methods. Notation can be divided into two categories: recording pitch and recording fingering. Both staff and simplified musical notation are musical notations that record pitches. The guitar's six-line notation and the guqin's subtraction notation are both musical notations that record fingerings.

3. Melody is the primary element of music. Usually refers to an organized and rhythmic sequence of several musical sounds formed through artistic conception. It is performed in a single voice composed of a certain pitch, duration and volume and with logical factors. Melody is an organic combination of many basic elements of music, such as mode, rhythm, beat, dynamics, timbre performance methods, etc.