Gnome - Session start-up

[AdabalaP schneider com]

Hi,
How do i start-up a "<mysong>.wav" file at the Gnome Session Start-Up ? I
have tried using 'gnome-session-properties', But this one ask the command
to be run, I gave '/path/to/the/wave/file'. Should i be prefixing it with
the application to be used, If so can you tell me what is it ?

Thanks.