The name for the central pitch around which melodies gravitate and on which they generally end is 'Tonic.'
Explanation:
When it comes to music, tonic or keynote is the very first note of a major or minor scale. In simple words, tonic is the central note. In every music, tonic is often found at the beginning as well as at the end of the melody. Tonic focuses on both aspects of music: melody and harmony.
With so many styles of music, tonic is the one which produce the feeling of resolution. Many a times tonic is also mentioned as tonic chord, which consists of three tones.
