Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/4
M:3/4
K:D
['', 'A F', 'E B A']  
X:1
L:1/4
M:3/4
K:D
 A |:"D" f2 f | d2 c/B/ | A2 A | F z z | .F B/A/ A | .F B/A/ A | F G/F/ F/G/ |"A7" E2 z | g3 | e3 | 
"^(G)" d3/2 c/ B |"A7" A2 A |1 c B/A/ A |"Em" G F/F/ E |"A7" A c/B/ A/c/ |"D" d z z :|2 
"A7" c c/B/ A/A/ | G F/F/ E/E/ |"D" D3/2 F/ A | d z z ||"D" F B/A/ A | F B/A/ A | F G/F/ F/G/ | 
"A7" E3 | E3/2 B/ A | F B/B/ A | A3/2 G/ E |"D" F z z | F B A | F B A |"Em" G F3/2 E/ | E z z | 
"A7" E B A | E B A |"D" d3/2 d/ d | d z z |]  