Frequency

What sound is, how frequency and amplitude work, and why the harmonic series determines the timbre of every instrument — the physics behind EQ, synthesis, and mixing.

How EQ works: low-pass, high-pass, band-pass, shelf, and parametric filters explained — frequency, gain, Q, resonance, and the subtractive approach to shaping sound.

Where synthesized sound comes from — oscillator types, waveform shapes, and the harmonic recipe behind each one.

ADSR envelopes explained: attack, decay, sustain, release — how filter and amplitude envelopes shape synthesizer sounds from plucks to pads.

LFOs, vibrato, tremolo, detuning, unison, and glide — the tools that make static sounds come alive.

Subtractive, FM, wavetable, and granular synthesis compared — how to build patches from scratch, and what 'analog warmth' actually means in technical terms.

Thirty-two octaves below C-sharp on the piano gives you a frequency of one year. A thought experiment on octaves, scale, and teaching.

please, for the love of God, stop using decimals to rationalize intervals.

What if you could hear everything? Sound waves are spheres with pressure in one dimension and time in the other.