Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
Q:1/4=120
M:6/8
K:D
['G (Ad.d) (dcd) (efg) f2 e (dcA)', '(dcd) (efg) (Tf2 e) (dcA) (GEA) D3', 'D (FGA) (BF).G (cA).G (AF).D .F.G.A .c.A.G', '(cAG) (AGA) (fde) dcA (GEA) D3']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:D
"^Tenderly" G | (Ad.d) (dcd) | (efg) f2 e | (dcA) (AGA) |{A} B2 G A2 z/ G/ || (Ad.d) (dcd) | 
 (efg) (Tf2 e) | (dcA) (GEA) | D3 D2 || | D | (FGA) (BF).G | (cA).G (AF).D | .F.G.A .c.A.G | 
 (Ad).e d2 D || (FGA) (cAG) | (AGA) (fde) | dcA (GEA) | D3 D2 |]  