Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:6/8
K:A
['ecA Ace dBG GBd cBA', 'efg efg']  
X:1
L:1/8
M:6/8
K:A
 g/f/ | ecA Ace | dBG GBd | cBA ecA | def{a} gfg | ecA Ace | dBG GBd | cBA edB |{c} BAA A2 :: d | 
 efg efg | (f<a)f ged | efg efg | (b<a)a a2 d | efg efg |{g} f>ed Bcd | gfe edB |{c} BAA A2 :|  