Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
Q:1/4=120
M:2/4
K:Bb
['(d/c/) BGFD F>G FF BB', 'd[BD][BD] B dcde (f2 d)d cg gf']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:Bb
 (d/c/) | BGFD | F>G FF | BB d/c/B/c/ | dcc (d/c/) | BGFD | F>G FF | BB d/c/B/c/ | d[BD][BD] |: B | 
 dcde | (f2 d)d | cg gf | gc c(d/c/) | BGFD | F>G FF | BB d/c/B/c/ | d[BD][BD] |]  