Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:Eb
['E3 EE EE E F4 F4 E4']  
X:1
L:1/8
M:4/4
K:Eb
 E3 EE EE E | F4 F4 | E4 F4 | G8 | E3 EE EE E | F4 F4 | E4 F4 | G8 | c3 df ed c | B4 G4 | 
 B3 F=E FB F | G8 | c3 df ed c | B4 G4 | B3 F=E FB F | G8 | E3 EE EE E | F4 F4 | E4 F4 | G8 |]  