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
['C FGA (BA)G AGF c2 A Bcd', 'c2S c cde f2 e/e/ dcB A2']  
X:1
L:1/8
M:3/4
K:F
 C | FGA (BA)G | AGF c2 A | Bcd cdA | G3 G2 E | FGA BAG | AGF f-f e | dec =Bcd | d3 c2S || c | 
 cde f2 e/e/ | dcB A2 f | efd ^cde | e3 d2 d/d/ | cde fcd | cdA GGA/A/ | FFc cAd | 
 G3"^3rd time - D.S." F2 :|  