Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:Bb
['g>Ba>B b>BA>B G>BF>B E>BD>B c>ec>A']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:Bb
 c>ec>B B>AG>F | g>Ba>B b>BA>B | G>BF>B E>BD>B | c>ec>A B4 | B>cd>e f>BA>B | g>Ba>B b>BA>B | 
 G>BF>B E>BD>B | c>ec>A B4 | f>BA>B g>BA>B | g>ab>a g>fe>d | e>dc>B c>Be>d | e>dc>B B>AG>F | 
 B>ed>e f>BA>B | g>Ba>B b>BA>B | G>BF>B E>BD>B | c>ec>A B4 |]  