Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/4
K:G
['GA Bd (Tgf/)g/ ed BG', '(Tgf) ed']  
X:1
L:1/8
M:2/4
K:G
 D | GA Bd | (Tgf/)g/ ed | BG dG | A/B/A/G/ FD | GA Bd | (Tgf/)g/ ed | BG A/B/A/F/ | G2 z :: !>!d | 
 (Tgf) ed | (Tgf) ed | BG dG | A/B/A/G/ FD |!<(! GA Bd!<)! | GA Bd | (Tgf/)g/ ed | BG A/B/A/F/ | 
 G2 z :|  