Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/4
M:4/4
K:D
['D D']  
X:1
L:1/4
M:4/4
K:D
 A | D D E F | B2 A F | G F D D | D3 A | d d B d | c A B B | E E F G | A3 A | d d B d | c A B c | 
 d d c B | A2 F E | D D E F | G B A F | G F D D | D3 |]  