- 4 November 2015 - 99,000 works have scores or parts on Petrucci Music Library.
- 10 October 2015 - 330,000 scores.
- 1 October 2015 - 98,000 works have scores or parts on Petrucci Music Library.
- 29 September 2015 - IMSLP now has 37,000 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.