Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:2/2
K:Emin
['', 'GEEF G2', 'f2 af']  
X:1
L:1/8
M:2/2
K:Emin
 BA |: GEEF G2 EF | G2 FG AcBA | GEEF G2 ef | gfed B2 BA | GEEF G2 EF | G2 FG AcBA | GFEF GABa | 
 gefd e2 ef || g2 bg f2 af | e2 fe Bdef | gabg fgaf | gfed e2 ef | g2 bg f2 af | e2 fe Bdef | 
 gabg f2 af | gfed edBA ||  