This particular roll, catalog no. XP-146-B, features a medley of six Snow White songs, though it's not indicated which titles are included. They were performed by Doug Roe, a now-deceased recording artist and arranger for QRS.
XP-146-B pics via way*cute.
Searching the QRS website today, we find that a very similar roll to the one above is still available (catalog no. XP-146; retail $25). It features a medley of seven Snow White songs: 1. Whistle While You Work; 2. Heigh-Ho; 3. Someday My Prince Will Come; 4. One Song; 5. With A Smile and A Song;. 6. I’m Wishing; 7. Bluddle-Uddle-Um-Dum.
There's also a solo roll that plays Someday My Prince Will Come (catalog no. 6826; retail $15).
And one more quick search on ebay revealed an older roll, also produced by QRS, but performed by Lawrence Cook. "Heigh-Ho" (The Dwarf's Marching Song). Catalog #6814.
Image via rdgoulaz.
Lawrence Cook was "the most prolific piano roll artist in history," producing an estimated 10,000 to 20,000 different roll recordings. He passed away in 1976.