Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/4
Q:1/4=160
M:2/2
K:G
['G G B2', 'g/f/e/d/ B/c/d/B/', 'B2 A A c e G G', 'B/c/d/B/ A A c e']  
X:1
L:1/4
Q:1/4=160
M:2/2
K:G
 G G B2 | A A c e | G G B2 | d d e g || g/f/e/d/ B/c/d/B/ | A A c e | g/f/e/d/ B/c/d/B/ | d d e g | 
 g/f/e/d/ B/c/d/B/ | A A c e | G G B2 | d d e g |][M:2/2][K:G] G G B2 | A A c e | G G B2 | 
 d d e g || g/f/e/d/ B/c/d/B/ | A A c e | g/f/e/d/ B/c/d/B/ | d d e g | g/f/e/d/ B/c/d/B/ | 
 A A c e | G G B2 | d d e g |]  