Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
M:4/4
K:G
['G2 GF GABc d2 eB dcAc BEED', 'Bee_e =e2 =ef geaf gfed']  
X:1
L:1/8
M:4/4
K:G
 (3DEF | G2 GF GABc | d2 eB dcAc | BEED EFGA | BGAF GFED | G2 GF GABc | d2 eB dcAc | BEED EFGA | 
 BGAF G2 :: GA | Bee_e =e2 =ef | geaf gfed | Bdd^c d2 de | fdfa gfed | Bee_e =e2 =ef | geaf gfed | 
 BEED EFGA | BGAF G2 :|  