How often does the music play?

[Anke]

All your threads seem to concern the same topic.
This would then be the → sixth thread on this.

https://community.appinventor.mit.edu/t/what-is-the-difference-between-these-two-programs/22114/4?u=anke

Play component?

[a] Pictured above. It means: after a sound file is played. Then execute the following program statement. Or, a sound file is about to be played (not finished yet). Just execute the following program statement.