Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:4/4
K:G
['G/G/G B>G', 'B<GG f g>dg>B A>GE>e g>dg>B g>dg>a b/a/g/f/']  
X:1
L:1/8
M:4/4
K:G
 A | G/G/G B>G A>G E<A | G/G/G B>G A>GB>G | c>AB>G A>GE>e | d>cB>A B<GG :: f | g>dg>B A>GE>e | 
 g>dg>B g>dg>a | b/a/g/f/ g>B A>G E<e | d>cB>A B<GG :|  