Compose a musical piece by utilizing the given alphabetic form and motif.
X:1
L:1/8
M:4/4
K:G
['GA [GB]3 [GA] [GB][Gc][GB][GA] [GB]4 [GB]2 g2', 'g3 a b3 g a2 ab ag']  
X:1
L:1/8
M:4/4
K:G
 GA | [GB]3 [GA] [GB][Gc][GB][GA] | [GB]4 [GB]2 g2 | edBc dBGA | BGAB A2 GA | 
 [GB]3 [GA] [GB][Gc][GB][GA] | [GB]4 [GB]2 g2 | edBc dBcA | B G2 G G2 :| g3 a b3 g | a2 ab ag e2 | 
 gaba g3 e | d2 de dc B2 | g3 a b3 g | a2 ab ag e2 | efge dBAc | B G2 G G4 :|  