Harmonics are vibrations a fraction of the length of the vibrating string, which add higher-pitched and more complex content to the notes. With a dull instrument, the harmonics die out, but with a sustaining instrument, the harmonics continue to sound along with the fundamental note.

Occasionally, when I run into a great bass backstage at a festival I'll play a few notes on the low E string, just to feel the instrument vibrate against my belly.

For less than the cost of a Big Mac, fries and a Coke, you can buy a loaf of fresh bread and some good cheese or roast beef, which you will enjoy much more.

Or another rule of thumb is to add one car length for every 10 mph you are traveling.

All modern MIDI synthesizers are capable of polyphony, which means they can play more than one note at a time and more than one instrument at a time.

In the late '80s and early '90s, there was a slightly retro drum sound that was popular in hip-hop music called the 808 bass drum sound. It was the bass drum sound on the 808 drum machine, and it's very deep and very resonant, and was used as the backbone as a lot of classic hip-hop tracks.