Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:3/4
K:F
['cd c2 F2 A2 B2', 'B3 E']  
X:1
L:1/8
M:3/4
K:F
 cd |:"F" c2 F2 A2 |"C7" B2 E2 cd | c2 E2 B2 |"F" A2 F2 cd | c2 F2 A2 |"C7" B2 E2 c2 | ec B3 E |1 
"F" F4 cd :|2"F" F4 c2 |:"C7" ec B3 E |"F" Fc A3 F |"C7" Ec B3 E |"F" Fc A2 c2 |"C7" ec B3 E | 
"F" Fc A3 F |"C7" Ec B3 E |1"F" F4 c2 :|2"F" F4 z2 |]  