Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
M:2/4
K:D
["d/e/f/g/ aa d'd'b z a z f", "z ba d'd' ed d'd' aa b/d'/c'/b/"]  
X:1
L:1/8
M:2/4
K:D
 d/e/f/g/ aa | d'd'b z | a z f z | e/d/e/f/ d z :| !fermata!d'd' ba | d'd' ed | d'd' aa | 
 b/d'/c'/b/ a z!D.C.! |]  