Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/4
M:4/4
K:A
['', 'F F']  
X:1
L:1/4
M:4/4
K:A
 E |] (A3/2 E/) E D | C A,2 A/ A/ | G A3/2 B/ c | (A G2) (G/A/) | (B3/2 A/) G B | (A G) F (G/A/) | 
 B E (F ^D) | E3 E | F =D D F | F E2 E | A2 d c | (c B2) (A/>B/) | c3/2 A/ A F | F D (C D) | 
 E2 F G | A3 |]  