- 17 August 2015 - 325,000 scores.
- 15 August 2015 - 13,000 composers.
- 30 July 2015 - 96,000 works have scores or parts on Petrucci Music Library.
- 6 July 2015 - IMSLP now has 36,000 recordings.
IMSLP stands for International Music Score Library Project
. The logo is a capital letter A, taken from the very first press-printed book of polyphonic music, the Harmonice Musices Odhecaton
, published in 1501. Its printer, Ottaviano Petrucci
, is this library's namesake.