Utilize the given musical motif and the alphabetic representation of the specified sequence to create a musical piece.
X:1
L:1/8
M:2/4
K:G
['B2 BB']  
X:1
L:1/8
M:2/4
K:G
 G2 GG | G2 DB | B2 BB | B2 Gd | dddd | d c2 d | d2 dc | B2 z2 | GGGA | B2 BB | A2 Ac | B2 B2 | 
 GGGA | B2 BB | A2 A2 | G2 z2 |]  