Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:4/4
K:Bmin
['d2 efge', 'ga bgaf gfed faaf']  
X:1
L:1/8
M:4/4
K:Bmin
"Bm" dBBA B2 AB | dB B2 fBdB |"Bm" dBBA B2 dB |"A" ABde"F#m" fafe |"Bm" dBBA FB B2 |"G" dBBA Bdef | 
"A" aAAB A2 AB | ABde fdef |]"D" d2 fd"Em" efge |"D" defa"A7" gefe |"D" d2 fd"Em" efge | 
"D" faaf"A7" gefe |"D" d2 fd"Em" efge |"D" defa"G" g2 fa |"Em" bgaf gfed |"D" faaf"A7" gfed |] 
"D" faaf faaf | faaf gfed |"G" gbbg gbbg |"Em" gbbf gfed |"D" faaf faaf | faaf"G" g2 ga | 
"Em" bgaf gfed |"F#m" faaf gfef |]  