Develop a musical arrangement based on the stated alphabetical form and the given motif.
X:1
L:1/8
M:4/4
K:C
['dec BcA GBd', 'gfg agf']  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:9/8][K:G]SOSOO .!fermata!PMTuCOMg | dec BcA GBd | dBG GBd e2 g | dec BcA GBd | 
 gab agf e2 :: d | gfg agf edB | gfg agf e2 (g/a/) | bgg agf efg | dBG GBd e2 :|  