- 29 September 2026 - 262,000 works have scores or parts on Petrucci Music Library.
- 29 September 2026 - 885,000 scores.
- 6 September 2026 - IMSLP now has 95,000 recordings.
- 4 September 2026 - 261,000 works have scores or parts on Petrucci Music Library.
- The holograph manuscript of Heinichen’s Ave regina, S.24.
- The first edition of Ignatius Sancho’s [[Minuets, etc.Sancho, Ignatius ({{{2}}})|Minuets, etc.Sancho, Ignatius]], published by Richard Duke.
- The first edition of Grandval’s Violin Sonata, Op.8, published by Henry Lemoine.
- The first edition (parts) of Phalèse’s Cantionum sacrarum, Liber 8, published in 1558.
- The first edition of Bax’s Oboe Quintet, GP 258, published by Murdoch, Murdoch & Co.
- Cowell: The Donkey, HC 695 (#1064432)
- Cowell: The Creator, HC 919 (#1064431)
- Cowell: Gravely and Vigorously, HC 922 (#1064429)
- Cowell: Day, Evening, Night, Morning, HC 712 (#1064427)
- Cowell: Violin Sonata, HC 705 (#1064426)
- Cowell: Animal Magic, HC 659 (#1064425)
- Cowell: All Dressed Up, HC 720 (#1064424)
- Cowell: A Curse and a Blessing, HC 732 (#1064423)
- Beach: The Chambered Nautilus, Op.66 (#1064422)
- Beach: Hearken Unto Me, Op.139 (#1064420)
- Langer: Grossmütterchen, Op.20 (#1063810)
- Rondeau: Trumpet Canon and Fugue No.1290 (#1063638)
- Oechsler: 16 Choralvorspiele, Op.8 (#1063550)
- Ferrari: Io Verità (#1063406)
- Ferrari: Toccata della Candelora (#1063405)
- Diaz: Concierto andaluz para el final de un milenio (4 files)
- Rondeau: Trumpet Canon and Fugue No.1289 (#1063180)
- Rondeau: Trumpet Canon and Fugue No.1288 (#1063124)
- Wiecielkowski: I.1.2 Interlude (#1063115)
- Saint-Saëns: Valse gaie, Op.139 (#1063055)
