Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:C
['E2 (BA) Bdef', 'efge fdad bdad']  
X:1
L:1/8
M:4/4
K:C
 |[M:2/2][K:Emin] E2 (BA) Bdef | deBd AFDF | E2 (BA) Bdef | dBAF BEE z | E2 (BA) Bdef | deBd AFDF | 
 E2 (BA) Bdef | gefd (Be)e z || eB- B2 efge | fdad bdad | eB- B2 efge | fedf e2 (ef) | eBBB efge | 
 fdad bdad | gafg egfe | dBAF (BE)E z |]  