Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:4/4
K:D
['gfeg fefg afdf edef gecA', 'Afed B3 B Bgfe']  
X:1
L:1/8
M:4/4
K:D
 d2 | a2 aa gfeg | fefg afdf | edef gecA | defg agfg | a3 a gfeg | fefg afdf | edef gecA | 
 dfec defg | a2 a/a/a gfeg | f^efg afdf | e^def gecA | defg a2 fg | a3 a gf e/f/g | 
 f^efg af d/=e/f | e^def g/f/e cA | dfec d2 || A/A/A | Afed B3 B | Bgfe a2 aa | Afed cAce | 
 ageg fafd | Afed B2 BB | Bgfe a2 a/a/a | Afed cAce | agec d2 d/d/d | Afed B3 B | Bgfe A2 A/A/A | 
 afed cA c/d/e | a2 e/f/g f2 f/e/d | A2 f/e/d B2 B/B/B | Bgfe a3 a | A2 f/e/d cAce | agec d2- ||  