Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
['dBGB dBGB', 'ga bgdg afdf gece dBGB']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
 Bc | dBGB dBGB | ecAc efge | dBGB dBGB | AFDF ABce | dBGB dBGB | ecAc efge | dBGB cAFA | 
 G2 B2 G2 :: ga | bgdg afdf | gece dBGB | cdef gdcB | B2 A2 A2 ga | bgdg afdf | gece dBGB | 
 .c.e.d.c .B.A.G.F | A2 G2 G2 :|  