Develop a musical composition centered around the provided motif while maintaining the appropriate form.
X:1
L:1/8
M:4/4
K:Bmin
['f2 Bc', '(dc)Bc dcBc dfed cAAc'  
X:1
L:1/8
M:4/4
K:Bmin
 b | f2 Bc (de)f^g |{b} a^gae cAAa | f2 Bc (de)fb | a^gac B2 B :| c | (dc)Bc dcBc | dfed cAAc | 
 dcBc defb | a^gac{c} B2 Bc | (dc)Bc dcBc | dfed cAAc | Bcde{g} fefb | a^gac{c} B2 B ||  