MERRY CHRISTMAS MERRY CHRISTMASSSSSSSSSS
You could take a photo of you by a tree feeling happy or sad with colorful leaves falling and thinking bout something........idk
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!