- 16 November 2019 - 151,000 works have scores or parts on Petrucci Music Library.
- 3 November 2019 - 490,000 scores.
- 12 October 2019 - 150,000 works have scores or parts on Petrucci Music Library.
- 4 October 2019 - IMSLP now has 58,000 recordings.
- The holograph manuscript of C.P.E. Bach’s Keyboard Trio in E minor, H.529.
- The first edition of Paul Dresser's Tis All that I Have to Remember Her By, published by Howley, Haviland & co.
- The first edition (parts) of Wert’s Madrigali a 5 et 6 voci, Libro 9, published by Angelo Gardano.
- An early edition of Spontini’s Milton, published by Erard.
- The first edition of Frescobaldi’s Arie musicali, published by Giovanni Battista Landini.
- Azanchevsky: Cello Sonata, Op.2 (#600196)
- Rufinatscha: Piano Sonata, Op.3 (#600174)
- Reifsnyder: Baroque Bone Brigade Collection (13 files)
- Pleyel: Méthode pour le pianoforte (#600038)
- Kapsperger: Cantiones sacrae (4 files)
- Gilbert: The Man Who Broke The Bank at Monte Carlo (3 files)
- Armstrong: Patterns from the Game of Life, Part IV (#600025)
- Festing: Ode for St Cecilia's Day (#600023)
- Trill: Petit Patapon (#600022)
- Gillet: Réponse à Manon (#600021)

- Beischer-Matyó: Elrejtem magam (#600122)
- Armstrong: Patterns from the Game of Life, Part IV (#600026)
- Wot: Sweet Divertimento, Op.210 (#600008)
- Menkveld: Hollandse herinneringen, Op.1 (22 files)
- Ferrari: Natività (#599798)
- Hall: Officer of the Day March (#599781)
- Braxton: Piano Trio No.1, Op.2 No.1 (#599772)
- Various: Musiques et Chants du Moyen-Age (Adès) (2 files)
- Various: En retrouvant le Moyen-Age (BAM) (2 files)
- Ponchielli: La Gioconda, Op.9 (#599573)
