(d) sufficient sample layers for an adequately expressive playing (c) has resonances (sampled or simulated, it doesn't matter) (b) realistic sampled grand (no uprights, felts, cinematics.) (a) lightweight (especially on CPU usage) So, I'm searching for a new piano VST based on the following criteria: I have been using the Walker for that, but it is a little heavy on CPU usage, and that's not good because when I'm teaching online I have a lot of stuff open at the same time - Google Meet, OBS Studio, PDF files, the VST, browser, etc - and my quad-core 8th-gen Intel laptop really suffers with that. I am a happy owner of Garritan CFX and a not so happy owner of Embertone Walker 1955, and I'm looking out for another good piano VST, mainly not for extensive playing but for online music theory and ear training teaching (maybe elementary piano classes also).