In today’s DAW-based recording world, may engineers and producers like to go through each track and cut out any noise that might occur between phrases or even between notes. This can be a good thing, as it results in a tight, clean recording.
But you can take a good thing too far — if you cut out every little noise, the track may start to sound sterile or artificial. It’s all about balance. Unless a breath, finger squeak, or other human-generated noise is truly offensive, the track may sound more natural if you let it slip through.