Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
Q:1/4=180
M:2/2
K:Eb
['[G,E]2 [G,E]2', 'dBAF D2']  
X:1
L:1/8
Q:1/4=180
M:2/2
K:Eb
 eB | G2 BG F2 AF | [G,E]2 [G,E]2 [G,E]2 G,B, | E2 A,C FGEF | DECD B,2 BA | 
 (3GGB (3AAG (3FFA (3GGF | (3EEG (3FFE DCB,A, | G,B,ED CAFD | [A,F]2 [G,E]2 [G,E]2 :: BG | 
 E2 eB G2 bg | a2 af dBAF | D2 fd B2 ag | gbeg BeGB | E2 ge B2 bg | agaf dBAF | D2 BA Bafd |1 
 (3eBG (3EGB e2 :|2"^NB" e2 [G,E]2 [G,E]2 |]  