Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:4/4
K:Gdor
['G2 AG FGAc dAcA', 'Acdc AG G2'  
X:1
L:1/8
M:4/4
K:Gdor
|: FGGF GdcA | G2 AG FGAc | dAcA GABc | dggf g3 a | bgag fd d2 | f2 eg fdcA | G2 AG FGAc | 
 dAcA G3 z :: g2 ag fd d2 | gfdc Acdc | AG G2 Acdc | AG G2 F4 | FGGF GdcA | G2 AG FGAc | 
 dg g2 fgag | fdcA G4 :|  