Compose music by adhering to the prescribed format and merging the given motif.
X:1
L:1/8
Q:1/8=120
M:2/4
K:D
['FA A>d BG B>d Ad f>d', 'Ad f>g fe ed ef'  
X:1
L:1/8
Q:1/8=120
M:2/4
K:D
"^polka" FA A>d | BG B>d | Ad f>d | ed B/c/d/B/ | FA A>d | BG B>d | Ad f>d | ed d2 :| Ad f>g | 
 fe ed | ef ga | ba f2 | Ad f>g | fe ed | ef af | ed d2 :|  