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Originally Posted by Silvuh

For 12th notes, you could add that, because stepcharts are written in 4/4 time, 12th notes carry the beat when you step a waltz or anything in 3/4 time. They also occur when 12th swing is used in 4/4 time.

I think this would be confusing to people who don't spend a lot of time reading Western music notation.

Originally Posted by Silvuh

Should say that they're basically the same thing as the note they're closest to, because they're not always right next to 4ths.
You could also add that 192 is 12 * 16, which may make them easier to visualize.

That's a good point - it would probably also be useful to talk about every rhythm in terms of 4th notes, e.g. there are 4 16th intervals in a 4th note interval, 12 48th intervals, and so on.