Im sorry if this is a newbie q-but its not covered in the sticky section.

Im frustrated at not being able to come up with melodies.

I download tabs where the vocals/melody have been tabbed also-this helps but then I find I cant create my own one's-anybody got any tips?

Also seems that in those tabs showing the melodies -often a part of the melody does not bare any reference to the chord thats being played over it (or does it?)