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
['BG Gd B/c/d/B/ gd', 'g>d gd']  
X:1
L:1/8
M:2/4
K:G
 d/c/ | BG Gd | B/c/d/B/ gd | BG GA/B/ | cA Ad/c/ | BG Gd | B/c/d/B/ gd | Bd Ad/c/ | BG G || d | 
 g>d gd | gd B/c/d | g>f gf/g/ | aA Ad | g>d g>d | gd B/c/d/B/ | ce Ad/c/ | BG G ||  