Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
['G G2 A', 'gzef gaba']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
 DE | G2 GA BA a2 | bgag ezdB | G G2 A BAGE | ABAG EzDE | G G2 A BAa z | bgag egdB | G G2 A BAGE | 
 ABag ezde || g{a}geg fdB/c/d | gzef gaba | ge e2 edBd | egfd e3 z | gbeg fdBd | gzef gaba | 
 g g2 e a z{b}ag | ea{b}ag egdB | G8 ||  