Compose a piece of music that combines the given melodic theme with the assigned alphabetical pattern.
X:1
L:1/8
M:2/4
K:G
['g2 fg', 'G>B AG']  
X:1
L:1/8
M:2/4
K:G
|: g2 fg | eg dg | G>A BG | dB A2 | g2 fg | ag ed | Bg G>B | AG G2 :| BG B/c/d | gf ed | Bg G>B | 
 AG ED | G3 A | BA B/c/d | eg G>B | AG G2 :|  