Platforms like MuseScore often feature user-submitted arrangements.
If you search for “Libertango” on IMSLP today, you will likely encounter a blocked page or a notice saying “This work is not public domain in your country.” For users in the US, EU, or Canada (until 2043), downloading the score is technically copyright infringement. Piazzolla’s estate (Tonos Musikverlag) actively protects his work.
Piazzolla himself encapsulated this philosophy perfectly, stating: libertango piazzolla imslp
However, this does not mean the music is inaccessible. Musicians have several legal avenues for obtaining the sheet music for "Libertango":
Because of its popularity, Libertango has been arranged for countless instrument combinations. Pagani)
Many users mistakenly search for modern arrangements on IMSLP, which are often removed if they infringe on the publisher's rights (currently held by Edizioni Curci and A. Pagani). Common Arrangements and Alternatives
Next to each PDF link, look for a license symbol. Piazzolla himself encapsulated this philosophy perfectly
While the full score of Libertango is often restricted on the main site, you can still use the Astor Piazzolla IMSLP Category Page to check for availability in specific regions: