Hi Group,  My candidate for improvisation on classical music rolls
is Fantasie Impromptu Op. 66, C Sharp Minor, Chopin.  The first Ampico
roll is 52486-H played by Adriano Ariani.  I believe this is what
would be considered the standard performance of this piece.

The second Ampico roll is 60753-H played by Germaine Schnitzer.
Germaine takes great liberties with the score almost from the first
note.  When I played the two rolls for an organist friend he commented
that Germaine's version was not Fantasie Impromptu.  It is very
different but I find it interesting listening.

Jack M. Conway, Los Angeles, California, USA