Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:4/4
K:G
['G2 AG GEDB,', 'G g agfa gdBG cdeg fdba gdBG']  
X:1
L:1/8
M:4/4
K:G
|: F | G2 AG GEDB, | DEGA BAAF | G2 G2 EGDB | cABG EDDF | G2 AG GEDB, | DBdB cEEG | (3FGA DE FGAB | 
 (3cBA BA G2 G :: g | agfa gdBG | cdeg fdba | gdBG (3cBA Bc | dfaf gefg | bgfa gdBG | cBce dBcA | 
 (3FGA DE FGAB | (3cBA BA G2 G :|  