Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:6/8
K:Amin
['BEE Bcd', "c'ba bc'b edc"]  
X:1
L:1/8
M:6/8
K:Amin
 A2 c BEE | Bcd BA(G | G)AA cAA | ecf edc | ABc BEE | Bcd BAG | AcA GED | A,B,G, A,3 :| e2 a c'ba | 
 bc'b edc | Bcd cde | de^f ef^g | a3 c'ba | bc'b edc | AcA GED | A,B,G, A,3 :|  