Choosing one pitch out of a discrete series using the same timbre and using several timbres at the same time

I thought about a possible experience. For example, if I hear a cluster going from C3 to, let's say, B3, and I need to repeat just one of the notes that I'm hearing, which note will I choose? Will the answer change in children? Is it possible to see what happens in musical talents? Is there any pattern of answers or not? What about when you use just 7 notes instead of 12? What about changing the temperament from, let's equal temperament to just intonation? Will the results change if I change the timbre I'm using (i.e., human voice instead of piano)?
What made me think about this experience? I've read that a pitch is often inferred from non-harmonic spectra, supposedly through a mapping process, an attempt to find the closest harmonic fit. If we organize sounds in such a way that we need to harmonize things that are not harmonic and give them just one pitch -and just one timbre too-, how do we organize in pitch a growing and discret series of pitches? Finally, what would the results be if we use more than one instrument in the same experience? For example, an alto tenor plays a C3, a basoon a C3#, a violin a D3, a piano a D#3, and so on. I hear this rich combination of timbres and pitches and I need to answer by singing which pitch do I hear the most, and maybe I could answer which instrument does this pitch belong to. This experience, if well done and controlled, could provide us very interesting results.