The bass tab is at the core of many iconic songs, resonating through speakers and headphones. While it may not always steal the limelight, it's the bedrock on which many memorable tunes are built.

Some people spend a lifetime studying music theory - and there’s certainly value in doing that - but if you just want to know the basics, fast, ToneGym’s new crash course could be well worth taking.

Rhythm notation shows the duration of a note. Watch the video to hear the difference in note length and see the durations of different types of note.