What are harmonics?

For our last day of pop aural skills class, I did a crash course on historical tuning systems. This involved a brief introduction to harmonics. As I was talking, I realized that my verbal explanation of this concept is still clunky and imprecise. This is a problem, because harmonics are important, not just for music …

The vocoder and Auto-Tune

The vocoder is one of those mysterious technologies that’s far more widely used than understood. Here I explain what it is, how it works, and why you should care. Casual music listeners know the vocoder best as a way to make the robot voice effect that Daft Punk uses all the time. Here’s Huston Singletary …