- 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.
- 29 March 2021 - 565,000 scores.
- 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.
- The first edition of Strauss’s Piano Quartet, Op.13, published by Aibl.
- Leo: I Do Like An Egg for My Tea (#691996)
- Pachelbel: Wie schön leuchtet der Morgenstern, P.46 (#691957)
- Anonymous: Yo so contento de la mya dona (2 files)
- Anonymous: La Badine (2 files)
- Anonymous: Curte ca 'scurte la mia vita (2 files)
- Pachelbel: Wie schön leuchtet der Morgenstern, P.501 (#691946)
- Anonymous: Batalha de sexto tom (2 files)
- Anonymous: Ach, Vater unser, der du bist im Himmelreich (2 files)
- Beatty: Duet for Harp and Cello, Op.2363 (4 files)
- Hartmann: Nu vågner trindt i enge (4 files)

- Caldini: Pastorale, Marginalia No.30 (#691905)
- Hernández Bellido: Ora Marítima Op.18 (3 files)
- Frederick II: Flute Sonata in E major, SpiF 55 (#691709)
- Frederick II: Flute Sonata in B minor, SpiF 62 (#691692)
- Ferrari: Spleen et idéal (#691667)
- Marcoux: Miniature IV 2 12 20 (#691523)
- Appenzeller: Plangite pierides (#691509)
- Ferrari: Aria sopra Beata nobis gaudia (#691465)
- Ferrari: Toccata sopra Iam Christus (#691464)
- Taverner: In Nomine (#691373)
