Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
Q:1/2=60
M:4/4
K:E
['g (dB)(AG) (ED)(EG) d2 dB d2 dg', 'dega{ga} b2 ag']  
X:1
L:1/8
Q:1/2=60
M:4/4
K:E
 g | (dB)(AG) (ED)(EG) | d2 dB d2 dg | dBAG EDEG | e2 ed e2 :: g | dega{ga} b2 ag | d2 dB d2 de | 
 dega{ga} b2 ag | e2 ed e2 eg | dega{ga} b2 ag | d>edB d2 dg | dBAG EDEG | e2 ed e2 :|  