* The tonic note. This is the note that the melody revolves around and that feels like "home." In a major melody, the tonic note is the first note of the scale.
* The major third. This is the third note of the scale, and it is what gives the melody its bright, happy sound.
* The perfect fifth. This is the fifth note of the scale, and it provides a sense of stability to the melody.
In addition to these three notes, there are a few other things that can help you recognize a major melody. These include:
* The overall sound of the melody. A major melody will typically sound bright, happy, and uplifting.
* The use of major chords. Major chords are built on the tonic, major third, and perfect fifth notes of the scale. They have a bright, happy sound that is characteristic of major melodies.
* The use of a major scale. A major scale is a series of seven notes that follows a specific pattern. Major melodies are typically built on major scales.
If you hear a melody that has all of these elements, you can be sure that it is a major melody.