[sciurius]

Not unless a lot of risky trickery is involved.

I think Mike has better ways to handle this.
For example, first, make a backup ( .msb )containing all songs and files.
Upon restore, check [x] restore to paths. When MSPro encounters a path that it cannot create or write to, it can prompt for a path replacement. For example, if it encounters a song that must be restored to

/storage/sdcard1/Scores/Foo/mySong.cho

The replacement inscruction would be

/storage/sdcard1 => /storage/0123-4567

and the song would go to /storage/0123-4567/Scores/Foo/mySong.cho

It can then apply this replacement path for all subsequent files that have /storage/sdcard in their paths.

Mike, if this is too hard I could make a special tool to 'relocate' an existing .msb so it can be restored with all songs in a different location.