Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/16
Q:1/4=60
M:2/4
K:G
['GA B2AG d2ef g6', 'd2 g2d2{c} B2AG e6 de d2cBc BAG']  
X:1
L:1/16
Q:1/4=60
M:2/4
K:G
|: GA | B2AG d2ef | g6 gf | e2d2c2B2 | A6 GA | B2AG d2ef | g6 ag |{g} f2ed e2d"^NB"^c | d8 :: d2 | 
 g2d2{c} B2AG | e6 de | d2cBc BAG | A6 GA | B2AG d2ef | g6 c2 | Bgfg B2cA | G8 :|  