Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:3/4
K:G
['[gBG,]2 ag/f/ gd dc/B/ cB/A/ BG DG', 'D2 dc Bc dg dc/B/ cB/A/ BG']  
X:1
L:1/8
M:3/4
K:G
 [gBG,]2 ag/f/ gd | dc/B/ cB/A/ BG | DG B^c df | ed/^c/ d2 D2 :: dc Bc dg | dc/B/ cB/A/ BG | 
 BcdDGB | A/B/A/F/ G2 G,2 :|  