Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/2=90
M:4/4
K:G
['EGGE G2 d2', 'e>feB ef g2']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:G
"_Key C in MS" EGGE G2 d2 | dBAG FAFD | EGGE G2 d2 | eBGF G/A/B E2 :| e>feB ef g2 | f>gfe de f2 | 
 e>feB ef g2 | fedf e/e/e E2 | efeB de f2 | ed-dB cBAG | BdAG E/E/E E2 |]  