Piano playing matching pitch of spoken voice - is there a name for this?

Question

This is my first post of the Music SE so apologies if this question isn't in the right place!

The other day, I was listening to a new album by electronic artist "Yimino" and I came across this (WARNING: EXPLICIT LANGUAGE) short track and wondered whether there is a name for the piano playing technique where the player seems to "imitate" his speaking voice through the pitch (is this the right word) of his piano playing?

I've tried various google search terms to try to find an answer but as I'm struggling to explain what it is I'm hearing, I've made no headway. It does seem like the sample is of some sort of performance artist, so it made me wonder if it's a known technique.

If anyone has come across something like this before - are there any more examples (video or audio) you could point me to?

Any help would be appreciated - thanks in advance!

Answer 1

Unison playing. Uni = one or as one, son = sound or note. Usually in the same octave, but I believe unison can be named when notes are an octave apart, played simultaneously. Sometimes everyone gets to play - as in Stevie Wonder's Sir Duke solo.

Answer 2

There is this technique that claims to mimic human speech solely through piano tones. But it is so complicated that it can only be done on player piano, and I find that I can only understand it if I already know what I'm supposed to hear (hence the subtitles on the video).

Answer 3

Speech melody is part of prosody (essentially the elements of utterances that aren't phonetic). You might call the piano's action here prosodic imitation, or, as it happens simultaneously, prosodic tracking or possibly prosodic augmentation.