Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/4
M:4/4
K:Gdor
['z B', 'c B A2 z']  
X:1
L:1/4
M:4/4
K:Gdor
 d2 G3/2 A/ B G d2 | z B A3/2 A/ G2 z B | A3/2 B/ c A B/ c/ d2 ^c d4 | z F E D G3 ^F | 
 G/ A/ B B A B4 | z B G c F3 B | A G/ F/ G G F4 |: d2 c B A2 z D | F G c B A2 z z/ B/ | 
 G z/ c/ A z/ d/ B c A3/2 A/ G4 :|  