This PDF download includes a transcription of Jelly Roll Morton's piano roll of The Pearls! Originally released in 1924 on Vocalstyle hand-played roll 50488, this performance is exciting and unmistakably Morton.
Morton's audio recordings had a time limit, and he usually stuck to around three minutes; on his piano rolls, he worked with unlimited time, and he takes advantage of it with about 5 minutes of improvisations.
Max Keenlyside