Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:3/4=60
M:3/4
K:C
['G c3 d c3 AGG GA', 'ed G c3 d2 e3 d(e/4f/4g/) (e/4f/4g/)']  
X:1
L:1/8
Q:3/4=60
M:3/4
K:C
"_No Key or Time Sig in MS" G c3 d c3 AGG |"^As Writ" GA c3 c2 d | G c3 d c3 AGG | GA c2 c2 :: 
 d(e/4f/4g/) (e/4f/4g/) g3 ed | G c3 d2 e3 | d(e/4f/4g/) (e/4f/4g/) g2 ed | GA c3 c3 :|  