The entire digital collection of the Piano Roll Archive may be accessed also from the SUPRA website. The site presents lists of the rolls by company catalog number, alphabetically by names of composers and performers from which the digital files can be viewed, downloaded, or streamed. It also links to the Stanford Libraries catalog for fuller information about the original rolls. A separate page explains how to employ the Sonic Visualiser with the digital files for detailed sonic analysis. Finally, there is a page directing the user to GitHub that provides access to the "raw" MIDI files that may be used for creating piano roll recuts and "expression" MIDI files that may be used to play the rolls on a MIDI device.