Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:2/4
K:G
['GB/c/ dB', 'G g fdec dB Gg fdec d2']  
X:1
L:1/8
M:2/4
K:G
 GB/c/ dB ecdB | GB/c/ dB cA (3cde | GB/c/ dB ecdB | (3cde dc BG G :: g | fdec dB Gg | 
 fdec d2 (3efg | GgAg Bgcg | d>edB G2 G :|  