Construct a musical piece utilizing the given sequence in alphabetical form and the supplied motif.
X:1
L:1/8
Q:1/2=84
M:2/2
K:G
['Bc dBGB cAFA', 'd2 B2 cfag fedc Bdgf edcB Acfe']  
X:1
L:1/8
Q:1/2=84
M:2/2
K:G
 Bc | dBGB cAFA | GDB,D CA,DC | B,DGB cBAG | (3FGA (3GFE D2 Bc | dBGB cAFA | GBdf gfgb | 
 (3baf (3age (3gfd (3fec | d2 d2 d2 :: B2 | cfag fedc | Bdgf edcB | Acfe dcBA | GBed cBAG | 
 FGAB cdef | gdeB cEcA | GFAF DCA,B, | G,B,DG G,2 :|  