Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:4/4
K:Gmin
['G g', 'd f d']  
X:1
L:1/4
M:4/4
K:Gmin
"Gm" G d G d | G d B A/B/ | G g G g | G g f =e/f/ |"Bb" B f B f | B g"F" A (G/F/) | 
"Gm" G A/B/"F" c B/A/ |"D" A2"Gm" G2 :|"Gm" G g G g | G g G g | B b B b | B b B b |"Dm" d f d f | 
 d f d c/B/ |"Cm" c c/d/ d g |"D" ^f2"Gm" g2 :|  