Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:G
['GABc AE E2 Bcde', 'eA A2', 'eA A2']  
X:1
L:1/8
M:4/4
K:G
|: GABc AE E2 | Bcde cA A2 | defg agfg | eAgA edcB | GABc AE E2 | Bcde cAA^c | defg a2 dc |1 
 AEGA cA A/A/A :|2 AEGA cAAe |: eA A2 fd d2 | eAAc BGGA | eA A2 edcB | GABc AE E2 | eA A2 fd d2 | 
 eAAc BG G2 | defg a2 dc | AEGA cAAG |: A2 A2 DE E2 | A3 G EDEG | ADDA DDAD | GABc AE E2 | 
 A2 A2 DE E2 | A3 G EDEG | eA A2 defg | eA A2 AEGA :|  