Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
Q:1/8=160
M:3/4
K:G
['gf e2 dB', 'GA B2 Bd']  
X:1
L:1/8
Q:1/8=160
M:3/4
K:G
"^slow" Bd | e2 ef gf | e2 dB gf | e2 dB AG | E4 EG | A2 AB de | G2 GB AG | E2 DE GA | G4 || GA | 
 B2 Bd ed | cB AG BA | G2 FA GF | E4 GA | B2 Bd ge | dB GA BG | E2 DE GA | G6 |]  