Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
M:4/4
K:D
['d2 d2']  
X:1
L:1/8
M:4/4
K:D
 AG |"D" F2 AG"A" E2 AF |"D" D2 FA d2 d2 |"A7" cege cdec |1,3"D" dfdB"A7" A2 :|2,4"D" d2 d2 d2 :: 
 A2 |"D" Affd A2 AA |"D" Affd"G" B2 B2 |1,3"Em" Bgge"A7" eccA |"D" Aaaf fddA :|2,4 
"Em" Bgge"A7" cdef |"D" d2 d2 d2 :|  