- 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 holograph manuscript of Zelenka’s Beati omnes, ZWV 94.
- 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.
- Trabaci: Ricercar Decimo Tono trasportato con una Fugha sola (#877494)
- Beethoven: Christus am Ölberge, Op.85 (2 files)
- Viadana: O sacrum convivium (#877492)
- Victoria: Jesu, dulcis memoria (#877491)
- Folk Songs: Fireflies (#877490)
- Morley: Fire! Fire! (#877489)
- Sullivan: The Gondoliers (#877488)
- Franck: Hulda (#877478)
- Lassus: O là, o che bon eccho, LV 674 (#877469)
- Hauser: Adeline Waltzes (3 files)

- Pape: Pourquoi des poètes? (#877375)
- Guilmant: Fughetta, Op.29 (#877345)
- 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)
