Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/8
M:2/2
K:A
['AB c2 cA', 'c2 dcBA ABcd']  
X:1
L:1/8
M:2/2
K:A
 AB |:"A" c2 cA c2 cA | c2 cA"E7" GEBE |"A" c2 cA"D" dcBA |"E7" GEFG"A" ABcd ::"A" e2 ec"D" f2 fe | 
"Bm" d2 dB"E7" e2 ed |"A" c2 cA"D" dcBA |1"E7" GEFG"A" ABcd :|2"E7" GEFG"A" A2 |]  