The melodic curve is the horizontal and vertical shape of the melody. The melody- harmony relationship refers to the relationship of the melody note to a chord progression. This aspect of melody corresponds to the concept of modality. The melody notes we use should have varying degrees of consonance or dissonance within the harmony. Melodic rhythm refers to the length and time feel of the melody and the phrasing.
Melodies tend to sound like sentences and tend to have pauses in between ideas.
The pauses and space between ideas can also be a form of rhythm as it defines the larger pattern of the phrase relationships. Play in phrases. Try to use speak like rhythms. Participate in Discussion Tim is there, too. For instance move upward or downward.