Viola organista

An etching of the Geigenwerk from 1620 shows an instrument of about the stature and shape of a harpsichord (i.e., a piano-shape with flat sides and hard angles).

In 1741, two inventors – Le Voir in Paris and Hohlfeld in Berlin – independently constructed versions of a bowed piano, similar to Heyden's design.

[5] In 2013, Polish musician Sławomir Zubrzycki completed the construction of another modern replica of the Geigenwerk called viola organista and played it in performance at the Academy of Music in Kraków.

In 2015, the musician Björk included this instrument – also played by Sławomir Zubrzycki – in a recording of the song "Black Lake" for the album Vulnicura Strings.

[7] Another modern instrument similar in concept, if not design, is the wheelharp, created by Jon Jones and Mitchell Manger in 2013, and debuted at the NAMM Show that year, in Anaheim, California.

Viola organista ( Codex Atlanticus , 1488–1489)
Geigenwerk - Etching from the Syntagma Musicum by Michael Praetorius (1620)