Fran,

Those specialized voices are limited to playback within the orriginating keyboard. Therefore, if the midi file was created on the Tyros2, when played back on the Tyros2 the sounds would be identical. However, when played back on a keyboad that did not contain those specific voices, the keyboard would substitute onboard voices, some that are so far off the wall you cannot imagine. An example of this is the anoying hand-clap that shows up on some files that used the brush-kit drums. Many of the older midi files are no longer compatible with the newer keyboards, which is another problem.

Gotta' go to work,

Gary