Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:4/4
K:Gmin
['B2 bg fdcB', 'BGFE DEFD'  
X:1
L:1/8
M:4/4
K:Gmin
 B2 bg fdcB | AFcF dFcF | B2 bg fdcB | ABce dBBc | B2 bg fdcB | AFcF dFcF | B2 bg fdcB | 
 GABc dBBc || BGFE DEFD | C2 c=B cGGA | BGFE DEFD | B,BBc dBBA | BGFE DEFD | C2 c=B cGGA | 
 BGFE DEFD | B,2 Bc dBBA ||  