Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:3/4
K:D
['dc de fd dc Bc dB BA', 'DF AF AF DG BG BG']  
X:1
L:1/8
M:3/4
K:D
{/A} dc de fd | dc Bc dB | BA AB AG | GF F2 D2 |] DF AF AF | DG BG BG | Ec Ec ec | dc dA GE | 
 DF AF AF | DG BG BG | Ac ec ec | d2 D4 |]  