In early 2020, the current owner of the Robert Lienau collection offered for sale 1,200 pages of manuscripts, including the scores of "Voces intimae", "Joutsikki", and "Pelléas and Mélisande", and the material was not available to scholars during negotiations. The original price tag was said to be over one million euros for the lot as a whole. At the end of the year, the National Library was able to acquire this collection with aid from foundations and donators. The final price was “considerably below one million euros.”