Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:3/4
K:F
['c>b ec']  
X:1
L:1/8
M:3/4
K:F
 (fa) c2 b/a<g |"_F" fa c2 Af |"_C7" eb c2 Be |"_F" fa c2 Ac | fa"_C7" c>b ag |"_F" fa c2 Af | 
"_C7" eb c2 Be | [Af]6 ||"_F" c>a fc af |"_C7" c>b ec B2 | c>b ec ge |"_F" c>a fc A2 | c>a fc af | 
"_C7" c>b ec B2 | c>b ec ge |"_F" [Af]6 |]  