Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/4
M:3/4
K:Amin
['A G']  
X:1
L:1/4
M:3/4
K:Amin
 A/>B/ | c B A | G A B | E D B, | C !fermata!A, A/>B/ | c B A | G E D | E A G | A2 (A/>B/) | 
 !fermata!c E ^F | G A B | E D B, | C D C/>D/ | E c (B/A/) | G E (D/>F/) | E A, A, | A,2 |]  