grand-strings.webp; grand-strings-720.webp
Source page: https://commons.wikimedia.org/wiki/File:Steinway_grand_piano_interior.JPG
Creator: Kjethdubns
License: CC0 — http://creativecommons.org/publicdomain/zero/1.0/deed.en
Original candidate: piano-18c0fbee.jpg
Crop: left 100, top 280, width 1300, height 1000; no enlargement.

upright-action.webp; upright-action-720.webp
Source page: https://commons.wikimedia.org/wiki/File:Kawai_UST8_Action_Wide_Photo.JPG
Creator: Drondent
License: Public domain
Original candidate: piano-90cd7166.jpg
Crop: left 300, top 250, width 1600, height 1150; no enlargement.