Displaying scrolled text on a time basis

[Francis Nugent Dixon]

Hi from Paris,

It's probably been done before.

My grandchildren want to sing along with songs.
I have written an acceptable script for displaying
the lyrics while the songs are playing, but I'd
like to smoothly scroll the lyrics up in a window,
line by line, as the song plays.

I have solved all song/lyrics synchronization
problems. All I is a little scroll loop, probably
with a millisecond timer mechanism inside it to
adjust the scroll speed.

Anybody done anything like this ?

Best Regards

Francis