Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:4/4
K:G
['z d g a b4 z a', 'z a', 'A G', 'D4 z D G ^F']  
X:1
L:1/4
M:4/4
K:G
 z d g a ||"G" b4 |"C" z a g e |"G" d4 | z d g ^f |"Em" g4 |"C" z a b c' |"D7" a4 || z a b c' || 
"Bm" d'4 |"C" z c'/b/ a g |"G" b4 |"C" z a g e |"G" d2 |"C" z d g ^f |"G" g4 |] z D G A ||"G" B4 | 
"C" z A G E |"G" D4 | z D G ^F |"Em" G4 |"C" z A B c |"D7" A4 || z A B c ||"Bm" d4 | 
"C" z c/B/ A G |"D7" B4 |"C" z A G E |"G" D4 | z D G ^F |"G" G4 |]  