Open Music Theory

Open Music Theory is a free, interactive text book

Open Music Theory is completely free and interactive. It goes a little deeper than musictheory.net and covers just about everything you could expect to learn in an undergraduate core theory course and more. What I really love about this site is that they cover more than just 18th century traditional theory. They have discussions on form in pop and rock music as well as poetry in music!

Here’s a screenshot of one of their lessons on the doo-wop chord progression:

Open Music Theory

It’s a perfect, free way to start learning core music theory.

They’ve also developed a more formal, interactive textbook: Open Music Theory Version 2 (OMT2)

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5 Popular Chord Progressions and How to Use Them

Start making your own music today with chord progressions from your favorite songs

E G♯ m C♯ m A

1 Progression, 3 Ways

Free

Musescore, Music xml, Midi, and Pdf file types included.

C♯ m G♯ m B E

1 Progression, 8 Ways3

Free

Musescore, Music xml, Midi, and Pdf file types included.

A♯dim C♯m F♯ B

1 Progression, 3 Ways

Free

Musescore, Music xml, Midi, and Pdf file types included.

A♭ E♭m G♭ D♭

1 Progression, 4 Ways

Free

Musescore, Music xml, Midi, and Pdf file types included.

C♯ m Bm E A

1 Progression, 3 Ways

Free

Musescore, Music xml, Midi, and Pdf file types included.

Am Em F C

1 Progression, 8 Ways

Free

Musescore, Music xml, Midi, and Pdf file types included.

Am Em F C

1 Progression, 8 Ways

Free

Musescore, Music xml, Midi, and Pdf file types included.