Not sure how to get an effect like this, but it's less like the current wave effect, I guess it is more like a suppressed fire effect, with some subtle highlighting above it.
It does not look like a repeated texture, though one could do that as well and interpolate through it. More cool with a shader though.
Make additional effects for the piano line. Perhaps a "flame" is the best way to describe this.
Have a look here, https://www.youtube.com/watch?v=WLpoYlNm7jk
Not sure how to get an effect like this, but it's less like the current wave effect, I guess it is more like a suppressed fire effect, with some subtle highlighting above it.
It does not look like a repeated texture, though one could do that as well and interpolate through it. More cool with a shader though.