How to learn a complete series of music video tutorials?

The complete notation course is as follows:

Nowadays, piano notation is generally double-row, that is, two-handed piano notation. The top row is played with the right hand and the bottom row is played with the left hand. The left and right hands of each line are surrounded by front straps, which is more convenient to play. The vertical line in the middle is a bar line, and there is a bar between every two bar lines. There will be a bar label in front, only the bar label in front will be marked, and the one behind will be omitted.

Pitch is basically divided into bass (counting down three points), bass (counting down two points), bass (counting down one point), alto (counting up or down without points), treble (counting up one point), double treble (counting up two points) and double treble (counting up three points).

The line behind the note is a sustain line, which is a quarter note according to ordinary notes. Adding a line after it will double the length of the note into a half note, and adding three lines after it will make a whole note. Shorten the line below the note by half, add one line below the eighth note, add two lines to the sixteenth note and add three lines to the thirty-second note. There is a point behind the sound, which is the attachment point, meaning to extend the sound by half.

There are beat marks in the upper left corner of the score, which are generally two-thirds, three-quarters, three-quarters, three-eighths, eight-sixths, eight-nineths and eight-twelfth. These figures cannot be simplified as in mathematics. The number above is the beat per minute of each bar, and the number below is the beat of several notes.

Sometimes there is a line above the tone, also called a smooth line. If the sound is connected with the same sound, it is enough to play the sound only once. Some tracks will have smooth lines. Smooth lines are different from Legato lines. All notes covered by smooth lines should be played smoothly.

The rest is represented by 0 in notation and is silent. Although it is silent, it has a length, which is similar to the ordinary sound length, but the full rest is represented by four zeros, and the number of beats is four. The binary rest is represented by two zeros and the number of beats is two.