Learn how to say Melodical correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word melodically:
as far as melody is concerned; as regards melody ⇒ the third of Tchaikovsky’s ten operas, and melodically one of his richest scores ⇒ The music is fantastically rich melodically, rhythmically, and texturally. ⇒ one of the most melodically complex piano styles in jazz history
tunefully and melodiously ⇒ The leader has also learned to play more melodically.