Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
Q:1/8=100
M:9/8
K:G
['Bd(g g)dB gdB', 'G Bc(d d)BG AFD EFG c2 B']  
X:1
L:1/8
Q:1/8=100
M:9/8
K:G
"^6/8 in MS" Bd(g g)dB gdB | cea afg f2 d | Bd(g g)dB gdB | (B/c/dB)"^qus in m\n\ns" e/f/gB A2 G :: 
 Bc(d d)BG AFD | EFG ABc"^tr" c2 B | gdB ecA dBG | (B/c/dB) (e/f/gB) A2 G :|  