Develop a musical work using the identified alphabetic pattern and the supplied melody as a theme.
X:1
L:1/8
M:3/4
K:G
['A B', 'F G']  
X:1
L:1/8
M:3/4
K:G
 B2 B | A B d | B c E | E F G | A2 E- | E2 G | F G/F/ E | D G A | B2 B | A B d | B c E | E F G | 
 G F E | D A B | G3- | G :| E2 E | D E F | F G E | E F G | G F D- | D A2- | A B A | G F G | E2 E | 
 D E F | F G E | E F G | G F E | D A B | G3- | G :|  