The Gig Book
Free1,700+ charts: swing tunes and ballads, bossa and samba, blues. Search by title, composer, style or key, transpose any chart to any key, and read it offline with no account.
Jazz Piano Master · iPhone and Android phones
1,700+ charts free in the Gig Book, 2,500+ chord voicings, 30 courses and the tools to practice them, on iPhone and Android phones.



01 · Gig Book
1,700+ charts in your pocket, ready with no signal at all.
The Gig Book library in the app, open on Favorites: six standards, each with its key and a gold star.
1,700+ charts: swing tunes and ballads, bossa and samba, blues. Search by title, composer, style or key, transpose any chart to any key, and read it offline with no account.
Star the tunes you play and they wait on their own shelf, one tap from the library.

The voicing sheet after a tap on G7 in a chart: the left hand and right hand notes on a keyboard, with Play and Roll.
Tap a chord symbol in a chart and the app draws a voicing on the keyboard, left hand and right, then plays it, together or rolled. Premium opens every chord, every day.

A set list in the app: standards in the order of the gig, each in its own key.
Build the night's set: pick the tunes, put them in order and give each one its own key. On the bandstand the next chart is one tap away.

02 · Voicings
See a chord, hear it, and put it under your hands.
The Jazz Chords Encyclopedia on G7alt: a voicing written on the staff and drawn on the keyboard.
Every chord quality in all 12 keys, written on a staff and drawn on a keyboard, with the voicings to play it. Hear each one before you try it.

A Rich voicing of G7alt in the Encyclopedia, its flavor notes marked on the keyboard, with a Resolve button.
The fuller shapes printed in jazz piano books, many with flavor notes marked on the keys and, on most dominants, a Resolve button that plays where the chord wants to go.

03 · Every day
A fresh voicing every day, moving through the keys.
Today's practice in the app with the Voicing of the Day: G7alt on a keyboard, both hands marked, with Play and Resolve.
Each one comes with what each hand plays and why it sounds the way it does. Play it, and on a dominant, hear it resolve. Each day brings three; free shows the first, and Premium opens all three.

04 · Practice
Play, keep time, train your ear and keep track of the hours.
The Practice screen: the button into the Gig Book, a jazz joke, a practice tip and the first practice tools.
Touch and play, and hear any chord you build.
Swing feel, odd meters like 7/8, subdivisions and accents.
Ear training, one note at a time.
Your sessions, minutes and day streak, so a week of practice adds up.

05 · Learn
Guided paths from your first jazz chord to the bandstand.
The Courses tab: the learning paths, and the first course, Jazz Piano Fundamentals.
400+ lessons with quizzes along the way. Four learning paths show you where to start and what comes next:

06 · Reharmonize
Give it a progression and it writes new harmony for it.
The Reharm Engine with every method open: the Voltage Curve for a progression in C and the first of its reharmonizations.
Built on Prismatic Harmony, Vladan Mijatovic's method, it draws on 8 reharmonization methods, plays every version it writes for you and maps its tension on a Voltage Curve. Free plays the Clockwork Walk versions; Premium opens every method.

07 · Coach
Ask about theory, a voicing, or what to practice next.
Chick answers in plain words, inside the app, with a free account. Premium raises the limit to 30 messages a day.
Your messages go to our AI providers only after you agree in the app.
How do I voice a ii-V-I in B flat with both hands?
Great app for piano and general jazz charts
I absolutely dig this app after downloading it! The user interface is not confusing, the free lessons are great and covers a lot of important things. Sent a suggestion to the developers and they actually read it!! I know it’s because the app is in early development but still! First app I’ve seen that is definitely worth it to purchase a subscription. Recommend even if you don’t play piano (I play piano as second instrument).
Wow! 🤩 Jazz / blues made easy ! 🙏🏼
So thankful for this app! Surprised how easy and understandable it’s made my learning. Blessings ! 🥳
This is fun!
I don't know much about jazz, but this app has sparked my interest. It's packed with educational content that's both engaging and enjoyable, making it easy to learn while having fun. It's rare to find an app this comprehensive and well put together. Highly recommended!
Best jazz piano app!
Great jazz piano lessons for all levels of musicianship. Learned about chord voicing, improvisation, jazz theory and how to play my favorite standards!
iPhone and Android phones
Install it, open the Gig Book and play tonight.
More ways to downloadCompare Free and Premium
Also in Premium: the Advanced Voicing Archive.