Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/4
M:4/4
K:Gmin
['B c d', 'F G2 d2 c c B G']  
X:1
L:1/4
M:4/4
K:Gmin
"^(a)" D | G B A (G/F/) | G2 B c | d d c B | A2"^(b)" G F | (G B) A G | F D G F | D2 B c | 
 d d c B | c2 (B c) | d B A G | D2 B c | d e d c | (B G) A B |"^(c)" (G3/2 F/) G B | D2 B c | 
 d e d c | (B G) A B | G3 ||"^(a)" D | G B A F | G2 d2 | c c B G | F2"^(b)" D F | G B A G"^etc." | 
"^(b) only once" F2 (3D =E ^F ||[K:Gmin]"^(b)" F2 E F ||"^(b)" F3 F ||  