Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/16
M:2/4
K:D
['Adfd Adfd B2g2 g2fe', 'A2FA Bcde fdAF A3', 'dgbg a2e2']  
X:1
L:1/16
M:2/4
K:D
 z2 | Adfd Adfd | B2g2 g2fe | cege cege | b2a2 a2dB | Adfd Adfd | B2g2 g2fe | ceba gage | 
 d2f2 d2 :| z2 | A2FA Bcde | fdAF A3 d | cAGA c3 a | bafd A3 B | A2FA Bcde | fdAF A3 c | 
 dcBc dgfe |1 d2f2 d2 :|[K:G] d=c | BDGB dgbg | a2e2 e2ae | f2c2 c2fe | d2B2 B2dc | BDGB dgbg | 
 a2e2 e2ag | fdcA dcAF | G2B2 G2 :|  