Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/2=48
M:4/2
K:none
['e4{A} e3']  
X:1
L:1/8
Q:1/2=48
M:4/2
K:none
{d} B |{gef} e4{A} e3 f{gf} g4{ag} a3 g |{afg} f4{g} e3 d{gBd} B4{G} A3{d} B | 
{gef} e4{A} e3 f{gf} g4{afg} f3 e |{Gdc} d4{gBd} B3{G} A{gAd} A4{e} G3 B | 
{Gdc} d4{g} e3 d{gBd} B4{Gdc} d3 e |{gf} g4{afg} f3 d{gef} e4{A} e3 f | 
{gf} g4{ag} a3 g{afg} f4{g} e3 d |{gBd} B4{g} e3 f{gBd} B4{G} A3 ||{d} B | 
{gef} e4{gde} d3 B{Gdc} d4{gBd} B3{G} A |{e} G4{gBd} B3{G} A{gAd} A4{e} G3 B | 
{Gdc} d4{gdc} d3 e{gf} g4{a} f3 g |{ag} a4{f} g3 f{gef} e4{g} A3{d} B | 
{gef} e4{gde} d3 B{Gdc} d4{gBd} B3{G} A |{g} B4{GdG} B2{Gdc} d2{gef} e4{A} e3 f | 
{gf} g4{ag} a3 g{afg} f4{g} e3 d |{gBd} B4{g} e3 d{gBd} B4{G} A3 |]  