Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:3/4
K:D
["d'2 d'2", 'a2 a2']  
X:1
L:1/8
M:3/4
K:D
 d'2 d'2 d'2 | d2 d2 d2 | e4 g/f/e | f2 d4 | d2 (3agf ge | f2 (3agf ge | fa g2 f2 |{f} e6 :: 
 d2 (3agf ga | b2 g4 | e2 (3gfe fg | a2 f4 | DFAFGA | B2 G4 | E2 (3GFE FG | A2 F4 | a2 a2 a2 | 
 b4 c'2 | (3d'c'b agfe |{e} d6 :|  