Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
Q:1/4=120
M:3/4
K:G
['GG G3', '.e/.f/.g/.b/ a>f', '(e/f/g/).e/ a2 (fe) d3']  
X:1
L:1/8
Q:1/4=120
M:3/4
K:G
"^Moderate" d gf"^A" | g2 ag (f{a}g/e/) | d>B |1 GD (G/A/B/).d/ | (c>A) (F>A) GG | G3 :|2 
 GA (B/d/f/e/) | (d>c) (A>F) GG | G3 |]"^B" |] (A/B/) cB | A>B cd .e/.f/.g/.b/ | 
 a>f dd (e/f/g/).e/ | a2 (bg)"^~" (fe) | d3 (e/f/)"^->A2" gf |]  