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=100
M:2/2
K:D
['d2 e2 c2 d2']  
X:1
L:1/8
Q:1/2=100
M:2/2
K:D
|:"^A""D" D2 A2"^/" FGAF |"A" A2 Bc"D" d4 |"D" A2 Bc"Bm" dcBA |"Em" B2 E2"A7" E2 F2 | 
"D" D2 A2"^/" FGAF |"A" A2 Bc"Bm" dcBA |"G" d2 ef"A7" e2 c2 |"D" d2 D2"^/" D4 :: 
"^B""D" defg"^/" a2 d2 |"A7" c2 e2"^/" e2 g2 |"D" fg a2"A/C#" ef g2 |"Bm" f2 d2"G" d2 G2 | 
"D" F2 ED"Bm" F2 GA |"G" B2 AG"Em" B2 cd |"D/A" d2 ef"A7" e2 c2 |"D" d2 D2"^/" D4 :|  