Develop a musical piece using the given theme and incorporating the letter-based structure provided.
X:1
L:1/8
M:4/4
K:Emin
['EE B,E F2 z2 GG DG A2', 'z2 BB GB (cB) (A4 e3) G']  
X:1
L:1/8
M:4/4
K:Emin
"^A" |:"Em" EE B,E G2"B7" F2 |"Em" E6"D7" z2 |"G" GG DG B2"D7" A2 |"G" G6 z2 | 
"G" BB GB d2"E7" (cB) |"Am" (A4 e3) G |"Em" (BA) (AG)"B7" (GF) (FE) |"Em" E6"^fine" z2 :|"^B" |: 
"Em" (GA)"Am" AG"Em" G4 |"Em" (GA)"Am" AG"Em" G4 |"Em" (GA)"Am" AG"Em" (GF) FE |1 
"Am" A2"Em" G4 z2 :|2"B7" (FG)"Em" E4 z2 |"^C" |:"G" (Bc)"D7" cB"G" B4 |"G" (Bc)"D7" cB"G" B4 | 
"G" (Bc)"D7" cB"G" (BA) AG |1"D7" c2"G" B4 z2 :|2"D7" (BA)"G" (G2"B7" F2) |]  