- 15 April 2021 - 179,000 works have scores or parts on Petrucci Music Library.
- 14 April 2021 - 570,000 scores.
- 1 April 2021 - 22,000 composers.
- 31 March 2021 - 178,000 works have scores or parts on Petrucci Music Library.
- The first edition of Strauss’s Piano Sonata, Op.5, published by Aibl.
- The first edition of Coleridge-Taylor’s O Ye that Love the Lord, published by Novello.
- The first edition of Sophia Dussek's 3 Italian Airs with Variations, published by Naderman.
- The holograph manuscript of Cimarosa’s I due supposti conti.
- The first edition of Walter Donaldson's Carolina in the Morning, published by Jerome Remnick & Co.
- Tremblay: Suite de quatre pièces pour grand orgue (#693117)
- Novello: Keep the Home-Fires Burning (#693116)
- Weingartner: 2 Violin Sonatas, Op.42 (#693115)
- Tillman: Keep a Steppin' to de Music Ob de Band (#693114)
- Sweet: Keep a Moving (#693111)
- Skelly: Keep a Loving Heart for Me! (#693108)
- Friml: Katinka (#693091)
- Woodforde-Finden: 4 Indian Love Lyrics (#693074)
- Banta: Kareless Koon (#693073)
- Morris: Tiddle-de-Winks (#693072)

- Taverner: In Nomine (2 files)
- Wilkes: To Dream Again (2 files)
- Gardner: The Star-Spangled Banner (#692616)
- Mahler: Rückert Lieder (3 files)
- Van der Sommen: CelloSonate (#692207)
- Avni: Sarah Aaronsohn (#692041)
- Corsi da Celano: Missa 'La luna piena', TriCo 2 (5 files)
- Hernández Bellido: Alla riva del Tebro Op.19 (#692009)
- Caldini: Pastorale, Marginalia No.30 (#691905)
- Hernández Bellido: Ora Marítima Op.18 (3 files)
