Assemble a musical arrangement following the given alphabetic notation and motif.
X:1
L:1/8
M:2/4
K:G
['', 'dd dd', '', 'GG FG AA GA Bc B2']  
X:1
L:1/8
M:2/4
K:G
"A" |: dd dd | dd dd | d>d Ac | B2 G2 :|"B" |: DF GG | FG AA | GA Bc | B2 G2 :|  