Help me look at this note and type the questions.

Let's talk about the meaning of 2/4 time sign first, and the quarter note is one beat, with 2 beats per bar. (See if this is the case. If it is ~, it will be fine. Let's talk about it if there is a problem. )

This is a direct manifestation. Here is an idea (especially the drum, which is an instrument that only pays attention to "time"). All music, the beat must be constant and continuous (you can't suddenly change the speed, for example, from 80 to 60, and you can't suddenly stop, for example, after playing this part, stop and play again. Of course, if there is a special expression speed, it is not limited)

So it is a direct expression.

Let's talk about the difference between 2/4 and 4/4. Although mathematically, two 2/4 beats add up to four beats, and the number of beats is equal to one quarter of a beat, in fact, there is a great difference between them ~ ~ ~

For example, 2/4 beat is the strength, so if a big drum is added, the rhythm mode is at most dong (one beat) to dong (small drum) or dong (one beat) dong (one beat) (you can also change the small drum on this basis).

But if it's 4/4 beat, it may be that the above-mentioned thump (one beat) and thump (one beat) and thump (one drum) are just four beats, thump or thump (one beat) and thump (just four beats), and other rhythm patterns may be different. Of course, there are many examples ~ ~ Let's talk about this first. You see, you can only stop the third beat of 4/4 beat (although it is the second strongest), so this rhythm mode is still the "regular" rhythm of 4/4 beat. If 2/4 beats at the beginning of a bar, it is definitely not the regular rhythm of 2/4.

So you probably know the difference between 2/4 and 4/4. Although two 2/4 sums add up to a 4/4, here you have to lose the mathematical concept of numbers ~ ~ ~

Finally, the word F means strong, ff is stronger than F, fff is stronger, and M means slightly stronger, so M means slightly stronger.

The way to perform in the drum (you know) is to play a little stronger to a lot stronger (mf~fff).