Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/16
M:2/4
K:D
['d4 A4 f4 d4 a2af d2df', 'ceaf fece']  
X:1
L:1/16
M:2/4
K:D
|: d4 A4 | f4 d4 | a2af d2df | A2Bc d4 :: ceaf fece | edBd dcBA | ceaf fece | e2dB A4 :|  