Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/8
M:2/4
K:D
['A>B A>B Ad dc', 'BA Be']  
X:1
L:1/8
M:2/4
K:D
 A>B A>B | Ad dc | B>c B>c | BE Bd | A>B A>B | Ad dc | BA B/A/B/c/ |1 d2 dB :|2 d2 de || f2 fe | 
 fB BA | Be e>f | ed BA | f>g fe | fB BA | Be B/A/B/c/ |1 d2 de :|2 d2 d2 ||  