Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
Q:3/8=120
M:9/8
K:G
['g2 e dBd', 'B2 d dBd'  
X:1
L:1/8
Q:3/8=120
M:9/8
K:G
"^Allegretto" g2 e dBd dBd | g2 g gab c'ba | g2 e dBd def | g2 G GAB A2 G :: B2 d dBd dcB | 
 c2 e ece edc | B2 d dBd def | g2 G GAB A2 G :|  