# On source loaded
**URL:** https://community.thunkable.com/t/on-source-loaded/508997
**Category:** Questions about Thunkable X
**Tags:** design, beginner
**Created:** [March 11, 2020, 3:51am UTC](https://community.thunkable.com/t/on-source-loaded/508997 "2020-03-11T03:51:01Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@dennys369](https://community.thunkable.com/u/dennys369)
#### Post date: [March 11, 2020, 3:51am UTC](https://community.thunkable.com/t/on-source-loaded/508997/1 "2020-03-11T03:51:01Z")
por favor quiero saber como puedo programar el bloque “on source load” para darle un tiempo y arranque el sonido apenas se abra la pantalla 2
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### Author:  [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)
#### Post date: [April 10, 2020, 12:38pm UTC](https://community.thunkable.com/t/on-source-loaded/508997/2 "2020-04-10T12:38:39Z")
Hey @dennys369,
Would something like this work for you?
> [@Music App with Playlist, Loop, Shuffle tracks](http://community.thunkable.com/t/music-app-with-playlist-loop-shuffle-tracks/563054):
>
> Loop Through a Playlist The first thing you’ll need for your music app is two variables. The currentTrackNumber variable keeps track of which song is playing right now The listOfTracks is your playlist where you’ll store your songs The next thing you need is to make the Play button load up the first track To help you imagine what’s going on here, you can think of it being like a juke box selecting a record. You’re queuing up something to play, but it’s not re…
Sorry for not getting back to you sooner - we only wrote that tutorial yesterday! 😂
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### Author:  [@ioannis](https://community.thunkable.com/u/ioannis)
#### Post date: [November 8, 2024, 11:39am UTC](https://community.thunkable.com/t/on-source-loaded/508997/3 "2024-11-08T11:39:10Z")