Many a times I find that there are longer pauses in the song. Either in the lead music or in the vocals and at places where there’s no underlying beat in the music. A song may start with a few lines of pure vocals or a lead piece of music without any beats at all.
However is this performed at the liberty without beats or there still is an underlying rhythm that I being a novice still don’t understand.
I want to leave it as a generic question as quoting specific songs may cause this question to become very specific.