Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/4
M:3/4
K:C
['G/A/ G F D D/ C3/2 C']  
X:1
L:1/4
M:3/4
K:C
 G/A/ | _B A c | _B2 A | G2 G | A2 c/c/ | c3- | c z c/c/ | d c _B | A2 G/A/ | G F D | D/ C3/2 C | 
 C3- | C z G/F/ | E D F | E2 D/C/ | D2 F | G/ G3/2 F | D3- | D z E/F/ | G A _B | _B A G/A/ | 
 G F D | D/ C3/2 C | C3- | C z |]  