Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
M:2/2
K:Bmin
['f BcdB GGGB ABcd ecAc BcdB GGGg', 'd2 df']  
X:1
L:1/8
M:2/2
K:Bmin
 f | BcdB GGGB | ABcd ecAc | BcdB GGGg |{fg} fedc BBB :| c | d2 df e2 ef | d2 df ecAc | 
 d2 df e2 eg | fedc BBBc | dfdf efef | dfdf ecAc | BcdB cdea | fedc BBB ||  