Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
Q:1/4=140
M:4/4
K:Bb
['Addc d2', 'gdgb gdgb']  
X:1
L:1/8
Q:1/4=140
M:4/4
K:Bb
 c | Addc d2 df | cF (3cBA cF (3cBA | Addc d2 dg | fdcA G3 :: c |{a} gdgb gdgb | fcfa fcfa | 
{a} gdgb gdgb | fdcA G2 G2 |{a} gdgb gdgb | fcfa fcfa | gdde fgag | gdcA G2 G :|  