The document discusses early keyboard instruments and provides images from various sources. It mentions one of the earliest surviving pianos from around 1720. It also references Vermeer's famous painting "The Music Lesson" which shows a lady playing a virginals, an early keyboard instrument. In addition to the virginals, the painting also depicts another early musical instrument.

1. One of the three earliest surviving pianos, made around 1720.

15. Vermeer’s famous painting, “The Music Lesson” shows a lady
playing the virginals. Notice that she’s standing up. What
other instrument do you see in this painting?

21. .

31.  Images are from:
 http://www.miayf.com/keyboard/clavichord/
 https://en.wikipedia.org/wiki/Bartolomeo_Cristofori
 http://www.vam.ac.uk/content/articles/q/queen-elizabeths-virginal/
 https://www.google.com/search?q=harpsichord+action+diagram&espv=2&biw=
1242&bih=602&site=webhp&source=lnms&tbm=isch&sa=X&ved=0ahUKEwju9uz
71f3LAhXCSiYKHWekAXQQ_AUIBigB#imgrc=UunrZm_zLo358M%3A
 https://www.infovisual.info/04/025_en.html
 http://dcpianos.com/_/product-category/grand-pianos-2/
 http://prideandprejudice05.blogspot.com/2015/09/celebrating-20-years-of-pride-
and.html
 http://sophia.smith.edu/blog/fys199-
01f12/files/2012/11/10000RuckersharpsicordportraitA3.jpeg
 http://collections.ed.ac.uk/calendars/record/19443
 https://en.wikipedia.org/wiki/Harpsichord#/media/File:ClavecinRuckers%26Ta
skin.JPG
 http://www.earlymusicalinstruments.info/harpsifotos.html
 http://www.pugetsoundpipeorgans.com/