Lisa went to a wedding where folk music was played rather than the traditional wedding march when the bride walked down the aisle. Later, Lisa distinctly remembers humming along to "Here comes the bride." Lisa's memory distortion is most probably due to:

memory distortion is due to ;

1. schemas,

2.source amnesia

3.the misinformation effect

4.the hindsight bias

5. the overconfident effect

6. confabulation

Explanation: Memories are not exact records of events. Instead, memories are reconstructed in different ways after the events have occur, that is they can be distorted by several factors. Which include schemas, source amnesia, the misinformation effect, the hindsight bias, the overconfidence effect, and confabulation.

Schemas

A Schema is a mental model of an event or object that includes knowledge as well as beliefs and expectations. It can distort memory.

Source Amnesia

This is another reason for distorted memories, people often don’t accurately remember the origin of information.

Her script for a typical wedding

Explanation: This is because Memories are not stored as exact replicas of reality; rather, they are modified and reconstructed during recall and people tend to place past events into existing representations of the world ( schemas ) to make memories more coherent.

how is this a question?

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 !