Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:6/4
K:F
['F3 F']  
X:1
L:1/8
M:6/4
K:F
 C2 | FF F2 E2 F2 |[M:6/4] (E D2) B, C4 z4 |[M:4/4] F3 F G2 AB | (AG) A2 c4 | z2 B2 (A/ G3/2) A2 | 
 c6 FF | (G/ E3/2) C2 B,4 | z4 _E3 D/C/ |[M:6/4] B,2 C2 | F3 F (F2 C6) | z4 z2 ||  