- 26 September 2023 - 224,000 works have scores or parts on Petrucci Music Library.
- 26 September 2023 - 730,000 scores.
- 24 September 2023 - IMSLP now has 80,000 recordings.
- 3 September 2023 - 223,000 works have scores or parts on Petrucci Music Library.
- The first edition of Jerome Kern’s Look for the Silver Lining, published by T.B. Harms.
- Medtner’s Violin Sonata No.1, Op.21, published by Muzgiz.
- The first edition of Cook’s Mandy Lou, published by Jerome H. Remick.
- The first edition of Kinkel’s 6 Lieder, Op.10, published by T. Trautwein.
- The holograph manuscript of Zelenka’s Barbara dira effera, ZWV 164.
- McGlennon: Oh! Uncle John (#877271)
- O'Donnell: Come Take a Dip with Me (#877270)
- Sloane: The Summer Widowers (#877269)
- Franklin: Come Take a Dip in the Deep with Me (#877257)
- Helf: Come and Spend Christmas with Me (#877256)
- Fitzgibbon: Come Seven, Come Eleven (#877251)
- Plumpton: Come Play with Me (#877248)
- Tate: Come over the Garden Wall (#877244)
- Saint-Saëns: Valse gaie, Op.139 (2 files)
- Bratton: Buster Brown (#877241)

- Caldini: Sentieri di nebbia, Marginalia No.205 (#877237)
- Burrows: Three Quatrains (2 files)
- Massun: Violin Sonata N. 6 Op.109 (4 files)
- Massun: Trio Flute, violin and Piano Op. 113 (4 files)
- Massun: Violin Sonata N. 7 Op.111 (4 files)
- Massun: Violin Duo Op.110 (4 files)
- Massun: Trio Flujte Violin and Viona N.2 Op.108 (4 files)
- Massun: Trio Flute Violin and Viola N.1 Op. 107 (4 files)
- Massun: Concerto by Flute and string orchestra Op.106 (3 files)
- Massun: Violin Duo Op. 105 (3 files)
