what are the figures of prominence or the subject matters in the songs that are the most crucial to the sounds you hear

It’s not that you can’t write about the bizarre or unusual, but you if you do so, you’ve got to recognize the following:

1. If all of your songs are “odd” or narrowly specific, you’ll need to position yourself as an artist similar to Weird Al Yankovich or They Might Be Giants.

2. You also have the option of connecting unusual topics to universal themes.

It’s not that you can’t write about the bizarre or unusual, but you if you do so, you’ve got to recognize the following:

1. If all of your songs are “odd” or narrowly specific, you’ll need to position yourself as an artist similar to Weird Al Yankovich or They Might Be Giants.

2. You also have the option of connecting unusual topics to universal themes.

Explanation:

In the second case, let’s say you feel inspired to write a song about a little, yellow bicycle. On its own, the subject is not very interesting. But what if you connected it to your thoughts on love or freedom?

But the melody of a piece of music isn't just any string of notes. It's the notes that catch your ear as you listen; the line that sounds most important is the melody. ... movies, there are melodic themes that are associated with the main characters.

Explanation:

i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

let me know if this !