Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
['dd cB z B']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
"^Moderato.""^dolce." DD/D/ dd | cB z B | AF FE/D/ | (F2 E) F/E/ | D>D dd | cB z B | (3AGF FE | 
 D2 z A | d>d e>e | f2 z A |"^cresc." d>d e>e | f2!p! fe | dc Bd/B/ | AF"^>" (F>E) | 
 (D/d/) z/!pp! F/ FE | D2 z2 |]  