This is a hard one to answer. The reason is that you are asked to distinguish between 2 schools of thought that are very close together. Not only that, but the characteristic you are looking for is not mentioned in either description.
Since semiotics brings in many more fields of study than does iconography, then I would go with iconography. This school of thought seems content just to find the symbols according to its description. What is done with them is mentioned in the other school but is not elaborated upon.
My answer would be iconography.
Answer:
Breifely explaining such a deep topic seems a little difficult, but I'll try my best:
Music first appeared during the Paleolithic period, either in the Middle (300,000 BP to 50,000 BP) or in the Upper Paleolithic (50,000 to 12,000 BP). Nearly all Paleolithic instruments found in Europe date from the Upper Paleolithic. To express joy or fear, humans used different noises. They might have made music as a result of these sounds, as well as from animals, such as birds chirping.
“Hurrian Hymn No. 6” is considered the world's earliest melody, but the oldest musical composition to have survived in its entirety is a first century A.D. Greek tune known as the “Seikilos Epitaph.”
Music is special because it is so diverse and impactful on our emotions. Music can raise someone's mood, get them excited, or make them calm and relaxed. Music also allows us to feel nearly or possibly all emotions that we experience in our lives.
Explanation:
What do you mean by that ?)
I believe that is Erich Korngold.
Hope this helped