Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/2
K:G
['', 'G2 G>F', 'G2 G>F']  
X:1
L:1/8
M:2/2
K:G
 G>A |: B>GA>G E>GD>E | G2 G>F G>BA>G | (3EFG A>B c>BA>G | E>AA>G (A2 A>)B | c>ec>A B>dB>G | 
 A>BA>G E>GD>G | B>GA>G E>GD>E |1 G2 G>F (G2 G>)A :|2 G2 G>F G>AB>c |: d2 d>e d>BG>A | 
 B2 e2 e>de>f | g>fe>d B>GB>d | (3efg f>a g2 e>f | g>bg>f e>fe>d | B>GA>G E>GD>G | B>GA>G E>GD>E |1 
 G2 G>F G>AB>c :| G2 G>F G2 ||  