Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:G
['d>Bd dBd cAc cAc']  
X:1
L:1/8
M:6/8
K:G
|: D |"G" G>AB/c/ dBG | Gge dBG |"C" c>ec"G" dBd |"Am" ABG"D7" FED |"G" G>AB/c/ dBG |"Em" Ggf efg | 
"D" a>fd"A7" ge^c |"D" d3- d2 d |"G" d>Bd dBd |"D7" cAc cAc |"G" B>dg dBG |"D7" ABG FED | 
"G" d>Bd dBd |"D7" cAc cAc |"G" Bdg dBG |"D7" c>AF"G" G3 |"G" d>Bd dBd |"D7" cAc cAc | 
"G" B>dg"Em" dBG |"Am" ABG"D7" FED |"G" G>DG BGB |"Em" dBd g2 d |"Am" e>fg"D7" a>gf |"G" g3- g2 |]  