Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:6/8
K:G
['GAB Gdd dAA A2 BAG E2 E', 'G3 ADD D3 AAB'  
X:1
L:1/8
M:6/8
K:G
 GAB Gdd | dAA A2 | BAG E2 E | AGF G3 :| ADD D3 | AAB c3 | BAG Bcd | DGF G3 | ADD D3 AAB c2 | 
[M:4/4]"^Slows" B2 A2 G4 | B2 c2 d4 | D2 G2 F4 |[M:6/8]"^a tempo" G3 G3 ||  