Construct a musical arrangement using the specified alphabetical sequence and the given motif as a foundation.
X:1
L:1/8
M:2/4
K:G
['(3d/e/f/ gB BA/G/ FA AB/A/ Gg', 'dB de/f/ gfed']  
X:1
L:1/8
M:2/4
K:G
 (3d/e/f/ | gB BA/G/ | FA AB/A/ | Gg g/f/g/a/ | bgg (3d/e/f/ | gB BA/G/ | FA AB/A/ | Gg g/f/g/a/ | 
 bgg :: B/c/ | dB de/f/ | gfed | dB de/f/ | gfed | e/e/e/e/ ed | gBBA | G/G/G/F/ GA | BGED | 
 G/G/G/F/ GB | A/A/A/A/ AB | Ggfe | edBA | G/G/G/G/ GB | A/A/A/A/ AB | Ggfa | g3 g :|  