Craft a musical piece that incorporates the given motif and follows the outlined structure.
X:1
L:1/8
M:6/8
K:G
['G2 G AGA', 'gfg aga bge'  
X:1
L:1/8
M:6/8
K:G
 D | G2 G AGA | Bcd efg | G2 G AGA | BGE E2 D | G2 G AGA | Bcd efg | dcB AGA | BGG G2 :: 
 !fermata!f | gfg efg | f2 d def | gfg aga | bge e2 f | gfg aga | bge efg | dcB cBA | 
 BGG G2"_D.C." :|  