Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:3/8
K:A
['A,A, A,A,']  
X:1
L:1/8
M:3/8
K:A
 z2 F | E2- E/D/ |[M:5/8] EB,A,/A,<EB,/ |[M:2/4] A,A, A,A, | A,A, A, z |[M:3/4] A,A, A,A, A,A, | 
 E (3C/D/C/ B,/A,/A, EB, |[M:2/4] A,<A, A,/F,/E, | A,/F,/E, D,D,/ z/ | A,A, E<A, | (3A,F,E, A,E, | 
[M:3/4] D,<E, =C,A,, D,C, | A,,A,, A,,A,, A,,A,, | A,,A,, A,,A,,/ z/ z2 :| A,,A,, A,,2 z2 |]  