Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/4
M:3/4
K:G
['D3/4 D/4 E F']  
X:1
L:1/4
M:3/4
K:G
 z z/ D/(E/)F/ | G G B | D D c | B A G | F z B3/4 A/4 | G3/2 F/F/ E/ | E D B,/C/ | D3/4 D/4 E F | 
 A G E3/4 D/4 | D3/2 E/D/ C/ | C B,/B,/ C | D3/4 D/4 E F | G2 z |]  