The Corvallis-OSU Piano International Records document the concert series and educational programs sponsored by the organization as well as the leadership and administration of the organization. The materials include concert series programs; promotional brochures, flyers, and posters; newspaper clippings; correspondence, meeting minutes, and treasurer's reports; and tickets. The records reflect the leadership of Steve Esbenson, Paula Krane, and Julie Searcy.
The records include large mounted posters for the 2010-2011, 2011-2012, and 2012-2013 Steinway Piano Series as well as the 2011 Jazz in the Valley concert. The 2011 Jazz in the Valley poster has been autographed by the performers Billy Childs and Steve Wilson. The 2011-2012 Steinway Piano Series poster includes the signatures of performers Mariangela Vacatello, Alexander Ghindin, Joyce Yang, and Paul Roberts. The 2012-2013 Steinway Piano Series poster has been signed by Jon Nakamatsu, Enon Barnatan, Jon Kimura Parker, Jacques Després, and Stuart Isacoff. Smaller posters for each series as well as individual concerts are also available in the collection.
An addition to the Corvallis-OSU Piano International (COPI) Records (Accession 2014:035) is made up of articles of incorporation, bookmarks, bylaws, concert programs, flyers, meeting minutes, newspaper clippings, posters, tickets, and treasurer's reports. These materials document performances hosted by COPI, primarily the Steinway Piano series and the Concerts at the (Corvallis Public) Library series.