Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:4/4
K:G
['GBAG GBAG', '(3dcB AF'  
X:1
L:1/8
M:4/4
K:G
 (3ABc |:"D" dAFD"G" GBAG |"D" FEDF"G" GBAG |"D" FDFD"A7" GBAG |"D" FGAF"A7" E2 (3ABc | 
"D" dAFD"G" GBAG |"D" FEDF"G" GBAG |"D" FGAd"A7" cdec |1"D" (3dcB AF D2 (3ABc :|2 
"D" (3dcB AF D2 cd ||"A7" ecAc egfe |"D" fdAd fagf |"A" ecAc egfe |"E7" d2 B2 A2 A_B | 
"G" BGDG BdcB |"D" AFDF A2 _B2 |"G" BGBd"A7" cdec |1"D" (3dcB AF D2 cd :|2"D" (3dcB AF D2 ||  