Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:3/4
K:F
['F,F, F,F, A,A, ||[M:2/4] G,3 G, ||[M:3/4]', '', '', 'F,F, F,2 F,F,']  
X:1
L:1/8
M:3/4
K:F
 F,F, F,F, A,A, ||[M:2/4] G,3 G, ||[M:3/4] A,2 A,A, G,G, ||[M:2/4] F,3 D, | G,2 G,G, | G,2 F,F, | 
 D,2 C,C, | C,C, C,C, | C,2 z F, | F,3 C, | F,F, F,2 | F,F, F,2 | F,F, F,2 | F,F, F,2 |]  