Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Amix
['e>d c2 Bc ABcA a2 e2 e2', 'a>ec<e a>ec<e a2 e2 e2', 'A2 AA c2 BA a2 e2 e2', '(3AAA a2']  
X:1
L:1/8
M:4/4
K:Amix
 e>d | c2 Bc ABcA | a2 e2 e2 g2 | B2 AB GABG | g2 d2 d2 e>d | c2 Bc ABcA | a2 e2 e2 g2 | 
 B2 AG dBed | c2 A2 A2 :: g2 | a>ec<e a>ec<e | a2 e2 e2 f | g>dB<d g>dB<d | g2 ddg | 
 a>ec<e a>ec<e | a2 e2 e2 g2 | B2 AG dBed | c2 A2 A2 :: e2 | A2 AA c2 BA | a2 e2 e2 g2 | 
 dGG<G B2 AG | g2 dde | A2 AA c2 BA | a2 e2 e2 g2 | B2 AG dBed | c2 A2 A2 :: e2 | 
 (3AAA a2 (3AAA a2 | a2 e2 e2 f2 | g>ag>e g>ag>e | d>cBA G>ABg | (3AAA a2 (3AAA a2 | a2 e2 e2 g2 | 
 B2 AG dBed | c2 A2 A2 :|  