The core of the Arvo Pärt Centre is the written material and notes given to the centre by the composer – both a traditional and digital archive are currently being established. About 90% of all the archival material that relates to Arvo Pärt has been collected from around the world and is now stored here. Preparations are being made for the creation of a traditional archive, and the transcription and digitalisation of Pärt's notes has also begun. The most important material will be accompanied by commentaries by the composer and members of his family.
The archive is located at Laulasmaa and is currently not yet open to the public.
The archive contains the composer's hand-written musical diaries, manuscripts, notes, quotations, notes with comments by the composer, documents and correspondence, photographs, the composer's equipment, tape recordings and cassettes, an audio collection, vinyl records, a video collection, research papers, awards and dedications, programmes, posters, media coverage, books, musical instruments and more.