Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:4/4
K:D
['B>gd>B A>ec>A', 'G2 A>dc>d e>dc>d B>e^d>e f>ed>e g>fe>d c>BA>^G']  
X:1
L:1/8
M:4/4
K:D
 B>gd>B A>ec>A | G>dB>G F>cA>F | G>DE>F G>AB>c | ^c>d^d>e f>e=d>=c | B>gd>B A>ec>A | 
 G>d (3BAG F>cA>F | G>gd>B A>e (3cBA | G2 F2 G2 :| A>dc>d e>dc>d | B>e^d>e f>ed>e | 
 g>fe>d c>BA>^G | A>^GA>^A (3BcB A>=G | F>dc>d e2 (3dcd | B>e^d>e f2 (3ede | g>ec>A ^G>AB>c | 
 d>A (3FGA d2 :|  