Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
Q:1/4=120
M:2/4
K:G
['D2 G>A Bc dg fd ec', 'G2 (3def gf eg fg af gf', 'g2 (3def gf eg fg af gf', 'g2 BA G>A Bc dg fd ec']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:G
"^Moderate" D2 | G>A Bc | dg fd | ec AF | G2 || (3def | gf eg | fg af | gf ed | g2 |] | (3def | 
 gf eg | fg af | gf ed | g2 || BA | G>A Bc | dg fd | ec AF | G2 |]  