Develop a musical piece using the given motif and adhere to the outlined musical structure.
X:1
L:1/8
Q:3/4=50
M:6/4
K:G
['gab gef g3 d>ec c A2 G3', 'd3 ABc cde e>dc efg ABA F2'  
X:1
L:1/8
Q:3/4=50
M:6/4
K:G
 gab gef | g3 d>ec | c A2 G3 | Bcd edg | e2 a a>gf | g e2 d3 || ABc cde | e>dc efg | ABA F2 d | 
 ecc dBB | cAf gGA | A2 G G2 |]  