Question

Anyone good in music?​

Answer 1

3. Dynamics indicates the loudness or softness of music.

4. A decrescendo is used to indicate that the music should gradually become softer.

12. The dot after a note increases its value by half of its original value

13. Allegro is a commonly used tempo marking, indicating to move at a brisk tempo.

Sorry I don't know all of the answers, hope this helps!