Create a musical composition using the provided alphabet sequence and motif.
X:1
L:1/8
Q:1/2=100
M:2/2
K:C
['dBTAG AcTBA', 'BG TG2']  
X:1
L:1/8
Q:1/2=100
M:2/2
K:C
 c2 ec dBTAG | AcTBA GE E2 | c(e/f/ g)e dBTAG | AcTBA GC C2 :| ecgc dBgB | cAfA BG TG2 | 
 AFcF GEcE | FD (G/F/E/D/) EC C2 | egcg dgBg | ceAc BG TG2 | AcFc GcEc | A(aTgf) ec c2 |]  