On Tuesday, July 7, 2020 at 3:16:16 PM UTC-7, TW Tones wrote:
>
> if I understood your needs I could give a better answer.
>

> On Tuesday, July 7, 2020 at 11:37:23 PM UTC+10, Adithya B M wrote:
>>
>> I have been using TW as a songs database for some time. I want to add 
>> Autoscroll functionality to individual tiddlers...
>>
>> ... 3) Execute the scrolling action with appropriate speed.
>>
>  
Based on their referring to a "songs database" and "scrolling...with 
appropriate speed"...

I would guess that they want to be able to scroll a "song" tiddler 
containing lyrics and perhaps musical notation,
and do so at a rate such that they can play along *hands-free* as the 
tiddler scrolls down up the page.
Something that lets them follow the music while using both hands to play 
their instrument.
Sort of like an automatic page turner for a performing piano player.  

I'm thinking perhaps some CSS transforms, e.g., translateY(-20em), to 
"scroll" the tiddler body content,
combined with some timed transitions, e.g., "transition: translateY 20s;" 
to control the rate at which it
moves, and perhaps some clipping with overflow:hidden so the content 
doesn't "leak out" into it's
neighboring tiddlers.

   https://www.w3schools.com/cssref/css3_pr_transform.asp
   https://www.w3schools.com/css/css3_transitions.asp

I've done some minor CSS animations using transforms and transitions, but 
it can be kind of tricky
to get it right.  If I have some time to play around with it, I'll see what 
I can do...

-e

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