Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
['F D2 d/c/d/f/ eB B>d D>d{f} e/d/e/f/', "ef afd'>f ad'(d'>a)"]  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
"^Slow" F | D2 d/c/d/f/ eB B>d | D>d{f} e/d/e/f/ aff>a | b(c'/d'/) (b/a/g/f/) (g/f/e/d/) (ef) | 
 D>d (f/e/.d/).e/ fdd :| b |{b} a>fd'>f (g/f/e/)d/ ef | afd'>f ad'(d'>a) | 
 bd'{b} a>f (g/f/)(e/d/) (ef) | D>d (f/e/.d/).e/ fddb |{b} a>f{f}d'f (g/f/)(e/d/) ef | 
 afd'>f ad'(d'>a) | bd'f>a (g/f/)(e/d/) ef | D>d (f/e/.d/).e/{de} fdd |]  