Okay can you show me a pic of your repeater layout, I need to see what the part under the music sheet image is like.
To me it looks like you have actually got the Wix Audio Player app set up in the condensed setting
and you have nothing happening on your page or in your code when the user clicks on the play button.
You might just be easier adding the Wix Audio Player as shown here and connecting that to your dataset.
https://support.wix.com/en/article/about-the-wix-audio-player