Like.. there's this certain bass sound that sounds like a storm is coming... some examples is like... evanescance's "bring me to life" the first 5 seconds of it, or the old pop song from bryan adams called "Everything I Do, I Do it For You".

These bass sounds are very high quality keys, rather than some internet drum kits that have a drum with a deep bass run but then stops, or bass lines off of soul records.