Compose music pieces conforming to the prescribed pattern and incorporating the provided musical concept.
X:1
L:1/8
Q:1/2=90
M:4/4
K:A
['fefg agag', '(3(fga) g2 e2'  
X:1
L:1/8
Q:1/2=90
M:4/4
K:A
 ed | cBcd ecAe | fefg agag | ecAc ecAc | BGEG BGEG | ecAc ecAc | fefg agag | eafd cABG | 
 A2 A2 A2 :: e2 | a2"^NB" (3(fga) g2 e2 | a2 (3(fga) g2 e2 | (3(agf) (3(efg) (3(agf) (3(efg) | 
 (3(agf) (3(edc) B2 ed | dcBA cBAG | Aceg agag | egfd cABG | A2 A2 A2 :|  