Tweet
Share

Sound Waves

Harmony

Pentatonic Scale

Chromatic Scale

Chords

Keys

Diatonic Chords

new

Intervals

new

Consonance

Premium


premium

Guitar Theory

premium

Piano Theory

premium

Rhythm

premium

Progressions

premium

Melody


LightNote Premium


More lessons on the way!

We're making new free lessons every month. Subscribe to get notified when they're released!

Sound Waves
The Basic Physics of Sound

A sound is a wave.

Every sound is created from vibrations in the air. Each sound has a frequency and an amplitude.

It can be louder...

Increasing the height of the wave, or amplitude.

...or more quiet.

Decreasing the amplitude.

It can be lower in pitch...

Lower notes will get longer.

...or higher.

And higher notes will look more compressed.

There are infinitely many notes.

Not just the ones you know, like A through G, but everything in between. Try clicking the colored bar to play different notes.

Frequency: 100Hz

Click me ^

Next Harmony
How do we pick which notes to use?

If there are infinitely many notes, how do we choose which ones will sound good together? Find out in the next section.

Next Section


LightNote Premium Course

We've been working hard on a Premium offering for LightNote. Check it out!

View the Course

New Music Theory Lessons from LightNote

We're making new free lessons every month! Subscribe to get notified when they're released!

* indicates required