Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:4/4
K:Cdor
['f2 f2', 'c2 c2']  
X:1
L:1/8
M:4/4
K:Cdor
 d2 d2 dedc | B4- B2 de | f2 f2 fgfe | d4- d2 f2 | g2 g2 e3 g | f2 f2 d3 B | c2 c2 cBcd | B4- B2 :: 
 AB | c2 c2 c2 Bc | d2 d2 d2 cd | e2 e2 efge | f6 AB | c2 c2 c2 Bc | d2 d2 d2 B2 | c2 c2 cBcd | 
 B4- B2 :|  