There has never been a music book like this. Hooktheory I is a smart, fun, skill-building journey that concretely teaches you how to craft melodies and chord progressions like professional musicians and gain a deep understanding and intuition for how music works. Validated by 16,435 musicians like you, Hooktheory I is the best selling how-to music book for instrumentalists, songwriters, producers, and DJs around the world for a reason.

This exploration of melody and chord creation is fun to read, easy to understand, and full of practical knowledge. It contains 41 interactive exercises and 94 audiovisual examples from artists like: Avicii, Beyonce, Journey, Maroon 5, Taylor Swift, and The Beatles, that make it easy to see the tactics these successful artists use.

Reading Hooktheory I doesn’t require any previous music knowledge or the ability to read music. On average, it takes about five hours to read (but more to fully absorb) so it isn't a huge time commitment. Dedicate only a few hours to reading this book and gain a lifetime of skills that will give your music that professional edge.

We wrote this book because we were tired of all of the “songwriting” websites and books that talk vaguely of “finding your inspiration” rather than providing concrete tools to improve your music.

With Hooktheory I, we have created an approachable, intuitive resource that directly answers the hard questions: Why do certain chords fit together easily, and others not so easily? How can I get from this chord to that chord? How can I create a great melody? Hooktheory I is a book that will make you say “ah ha!” many times over.

What's New

Version 1.1.3

Added melody to examples in section 5.2 and 5.3. Improved discussion of measures and meter in section 3.2. Fixed a few typos and did some minor copy edits.

Customer Reviews

Absolutely Fabulous


I've taken some music theory in college and we called "Figured Bass" what these remarkable educators call "Relative Notation" and this is exactly what blew open the curtains for me with my song writing. It doesn't matter the key you write it in, using Relative Notation or Figured Bass is truly the most elegant way to understand the inner-workings of music.

Bravo and KUDOS to the developers for not only delivering the best method for approaching music, but also providing it in a way that is approachable and completely applicable!

I often say to myself: "Hey, that last bit...let's explore that for a moment." Total inspiration.

Thank you also to the developers for the inspiring writing style. I have never felt more empowered to lavish each new bit of understanding along the way...until now. So many song ideas...and at the end of each chapter you hold me accountable.

I love the tests. They stretch my brain and help me re-discover points I may not have fully grasped before moving on to the next chapter. It honestly feels like a college course instructed at the level a small child would understand. Oh yeah! This would be great to share with kids who show interest in music. Set them free to explore their music ambitions!

So anyway...Thank you!

Sound Font Woes

Hazard Harry

I've only just started reading, so I can't say much about the content of the book (from what I've read so far it seems to be solid though).

One thing that immediately stood out to me was that the sound font/sample/synth used in the examples is really, reeeally cheap sounding. It reminds me of something you would hear in DOS era computer games. It would be less distracting if they were replaced with something nicer. I know this is a nitpick, but when the rest of the book looks so nice and sleek, it's a little jarring to hear something so old and ugly.

I realize this may not be possible from a time/effort perspective since it looks like you hard-rendered them into QuickTime files and redoing it could take too long, but I would immediately bump my review up to a 5 if that was fixed. : )

The best!


I learned more in the few days I spent going through this app than I did in years of trying and failing to learn an instrument, taking classes, and reading books about theory. It breaks it down so simple it almost makes me mad at all the teachers and books that make it so hard when it doesn't have to be. I've actually decided to give the piano and songwriting another shot because I finally understand it. I'd definitely recommend this to anyone who wants to learn theory, any instrument, or songwriting. I wish I could have had this years ago.


Hooktheory LLC Apps
70.2 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Hooktheory LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like