Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/8
M:4/4
K:D
['a>g f<Af>e d2 (3AB=c (3BGd- d>B A>Bd>e', '(3BGd- d>B A>Bd>e', 'e<d (3BGd- d>B A>Bd>e f z', '(3BGd- d>B A>Bd>e']  
X:1
L:1/8
M:4/4
K:D
 a>g | f<Af>e d2 (3AB=c | (3BGd- d>B A>Bd>e | f>d (3fga g>fe<d | f2 e2 e2 a>g | f<Af>e d2 (3AB=c | 
 (3BGd- d>B A>Bd>e | f z f<a g>e (3cAd- | d6 :: f>g | a2 a>g f2 (3fed | (3BGd- d>B A>Bd>e | 
 f z f<a g>fe<d | f2 e2 e2 |1 f>g | a2 a>g f2 (3fed | (3BGd- d>B A>Bd>e | f>a^g<a =g>e (3cAd- | 
 d6 :|2 a>g | f<Af>e d2 (3AB=c | (3BGd- d>B A>Bd>e | f z (3fga g>e (3cAd- | d6 |: A>B | 
 d2 e>d f2 e<d | (3BGd- d>B A>Bd>e | f z f<a g>fe<d | f2 e2 e2 A>B | d2 e>d f2 e<d | 
 (3BGd- d>B A>Bd>e | f z g<a g>e (3cAd- | d6 :: f>g | a>gf<a A>df<a | A>df<a f2 f>g | 
 a>gf<a g>fe<d | f2 e2 e2 |1 f>g | a>gf<a A>df<a | (3BGd- d>B A>Bd>e | f>d (3fga g>e (3cAd- | 
 d6 :|2 a>g | f<Af>e d2 (3AB=c | (3BGd- d>B A>Bd>e | f z f<a g>e (3cAd- | d6 ||  