Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:2/2
K:G
['', "g/f/g/a/ gbgbgb c'agf", "c'c'aa d'd'bg f/g/a/f/"]  
X:1
L:1/8
M:2/2
K:G
S |: g/f/g/a/ gbgbgb | c'agf g/f/g/a/ gd | g/f/g/a/ gbgbgb | c'agf ga !fermata!g2 :| 
 c'c'aa d'd'bg | f/g/a/f/ db b2 Ta2 | c'c'aa d'd'bg | f/g/a/f/ ea d3"_D.C." e |]  