How can what a person post on social media define them as a person ?

It can define their personality if they are a good person ect.

Explanation: For example based on the color of their clothes u can tell if their type of personality like if they were rainbows then they are very energetic ect.

if they post good things like no swearing and no bad stuff then they are a good person but if the post bad stuff then that sets a reputation as what they are

Explanation:

the sculpture i am pretty sure you are talking about is the statue b. the david statue now lives in the galleria dell'accademia, florence, italy. it was made by ‎michelangelo.

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 !