Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
Q:1/8=180
M:6/8
K:C
['GEG GEG cGE', 'afa geg']  
X:1
L:1/8
Q:1/8=180
M:6/8
K:C
 e | c3 GEG | GEG cGE | c3 Gce | dDD D2 e | cec GEG | GEG cGE | FdF EcE | dDD D2 |: e | ceg egc' | 
 afa geg | ceg c'ge | fdd d2 e | cec geg | c'gc' afa | geg fdf | ecc c2 e | ceg egc' | afa geg | 
 ceg c'ge | fdd d2 e | c>de dBG | A>Bc GEc | DEF Ggf | edd d2 :|  