Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/4
Q:1/2=140
M:2/2
K:Bb
['d d2 g2 d3/2 c/ B A', 'e d c B']  
X:1
L:1/4
Q:1/2=140
M:2/2
K:Bb
 d | d2 g2 | d3/2 c/ B A | G A B c | d/c/d/e/ d d | d2 g2 | d3/2 c/ B A | G A B c | d3 || f | 
 f2 b2 | f3/2 e/ d f | e d c B | c/B/c/d/ c F | c2 c2 | c3/2 B/ c d | e2 c2 | B3 d | d2 d2 | 
 d3/2 c/ d e | d c B A | G/^F/G/A/ G d | d3/2 c/ d =e | ^f g a f | d3 |]  