Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/4=150
M:4/4
K:C
['B3/2 z/', 'AceA GBdG']  
X:1
L:1/8
Q:1/4=150
M:4/4
K:C
 AcBA GABG | AcBA G3/2 z/ A3/2 z/ | AcBA GABG | AcBA G3/2 z/ A3/2 z/ | Bcdc BABA | 
 Bcdc B3/2 z/ B3/2 z/ | Bcdc BABA | Bcdc B3/2 z/ B3/2 z/ |: AceA GBdG | ABcd edcB | AceA GBdG | 
 ABcB A3/2 z/ A3/2 z/ :|  