Desc: Det vältempererade klaveret - En cembalo blir till: Directed by Johan Förnäs. With Assi Karttunen, Henk van Schevikhoven, Jaana Van Schevikhoven, Anssi Mattila. Henk van Schevikhoven builds a custom harpsichord, also known as cembalo, to musician Assi Karttunen, who also performs in a documentary.