Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:4/4
K:A
['A2 ce fgaf', 'ecBA a2 fa gaba gfe^d e2 fg']  
X:1
L:1/8
M:4/4
K:A
 A2 cA B2 dB | c2 ec dBAG | A2 ce fgaf | edcB AGFE | AEAc BEBd | cAce dcBA | A2 ce fgaf |1 
 edcB A2 FG :|2 edcB A2 fg || a2 fa g2 eg | f2 df ecBA | a2 fa gaba | gfe^d e2 fg | agfa gfeg | 
 fedf ecBA | A2 ce fgaf |1 edcB A2 fg :|2 edcB AGFE ||  