Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:4/4
K:Dmix
['AGFD (3EFG AB', 'gfed (3Bcd'  
X:1
L:1/8
M:4/4
K:Dmix
 A3 B AGFD | (3EFG AB c3 A | G2 EC G,CEG | cAGc AGFG | A2 GB AGFD | (3EFG AB c2 Ac | dfec dcAc |1 
 BdAG FDDF :|2 B2 AG FD D2 |: df f2 af f2 | Adfa gfed | (3Bcd ef ge^de | be^de ^cAAc | df f2 a3 f | 
 Adaf gfed | (3Bcd ge dBcB |1 AFGE D3 A :|2 AFGE D4 ||  