Should there be a drop-off from Facebook clicks/conversions or my Music Link to Spotify streams?

You should be looking for between 40% to 60% to make it all the way to Spotify from your ads.

There’s always a natural drop off whether it is from the listener simply changing their mind, saving the song for later, or wanting to look up the song on a different streaming platform.

It’s also possible that a small percentage of your activity from Facebook or Instagram could be bots.