Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Emin
['e>fg>e d>B (3Bcd', 'G>AB>c d>B (3Bcd']  
X:1
L:1/8
M:4/4
K:Emin
 B | e>fg>e d>B (3Bcd | c>A (3ABc d>BB>d | e>fg>e d>B (3Bcd | c>AB>G E2 EE :| D | 
 G>AB>c d>B (3Bcd | c>A (3ABc d>BB>A | G>AB>c d>B (3Bcd | c>AB>G E2 E>F | G>AB>c d>B (3Bcd | 
 c>A (3ABc d>BB>A | G>AB>c d>B (3Bcd | c>AB>^d e2 ef ||  