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Chord! - Guitar Songbook, Chords and Scales

By Thomas Grapperon

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Chord! is your next songbook, chords and scales app for guitar or any fretted instrument like bass, ukulele, banjo, etc.

With Chord!, you can write a song by simply dragging and dropping chords, transpose it in any key, compute the fingerings with any tuning and generate a beautiful print-ready PDF, etc.
You can also import your existing songs in text format (please note that the app does not ship with songs). You can also link audio tracks from your music library and play them at the same time while adjusting their pitch and/or speed.

Unlike other chord charts app, the app doesn't rely on a database of charts. Instead, it computes and analyses all the possible fingerings.
You don't even have to know music theory to use it: behind its brute force, the app knows how to handle by itself some subtleties of music in order to give meaningful results.

If you don't have to be an advanced player to use the app, you can however take a look under the hood and tweak the parameters if you like! Whatever is your level or your instrument, Chord! will adapt and give you the most precise answer.

You can search for any chord, split (like D/F#) or not. If you're a beginner, you can choose the chord from a list, but you can also use the intelligent keyboard to enter the chord as it is written. If this keyboard is a great way to enter chords, it is also very useful to discover and understand how the chords are formed. You can also enter some notes on a neck to find which chords it can be. You can hear how each fingering sounds. Chord arpeggios are also supported, as well as drop voicings (drop 2, drop3, etc.).

Chords are not all and the app is also shipped with the biggest list of named scales (and you can create your own scales). It analyses and presents them with nice interactive views (scale, score and keyboard). Of course it can also lay down these scales on a neck (with sound) and compute their fingerings. Like for chords, you can even search for a scale from its fingering!

Each scale can be harmonized (decomposed into chords). You can also enter a sequence of chords to find which scale you can use to improvise onto.

You can use one of the hundred tunings shipped with the app, or you can add you own ones, for any instrument, with or without a capo, even with broken strings if you want!

The app uses custom and unique algorithms to generate charts, easily input complex harmonic structures, extract chords from fingerings, determine fingers positions, compute keys of scales, generate chords from scales and find scales that go well with some chords.

For example, Chord! is the right tool in these situations:
• You want to have your songbook available at any time, in your pocket;
• You're a beginner and you want to know how to play easily a D/F# chord;
• One gave you an ukulele and you want to know how to tune it and how to play the G Hawaiian scale;
• You want to know on what scale you can improvise for some chord sequence (and the answer can be different than the Pentatonic minor!);
• You want to print your song and share it with your band.
• You want to experiment this nice open tuning, moreover with a bottleneck;
• Your little sister can't make bar chords and you want to show her how she can do without bars, with three (little) fingers only;
• You want to impress your little sister by showing her how you can play the same chords with two bars!
• You want to understand how this fingering for C13 is actually a fingering for C13;
• You broke a string and want to know how to play some chords without;
• You want to know how Django managed to play with two and a half fingers.

The app fully support left-handed instruments.

Main functions of the app:
- Write, transpose, fingerize, print and share songs;
- Search chord fingerings (or chord charts);
- Search chords from fingerings;
- Search scale fingerings;
- Search scales from fingerings;
- Search chords from scale;
- Search scales from chords.

What's New in Version 2.5.1

• Fixes an issue with reverse chord search on iPhones running iOS 7.
• Scales collections (and not only scale fingerings collections) can be exported to PDF.

As always, your feedback is highly appreciated. If you like Chord!, please rate it in the App Store every time an update comes out, that helps me a lot! Thank you very much!

v2.5: This is a massive update:
• Scale fingerings: like for chords, the app can now compute proper scale fingerings (with block patterns) from given parameters like the maximum number of notes by string, or the maximum offset from string to string for example.
• Chord arpeggios: using the same engine as for scale fingerings, the app can compute chord arpeggios.
• Scale fingerings and chord arpeggios can be exported as full vector PDF's or raster images like JPG or PNG.
• Custom everything: you can now define completely custom chords, chord fingerings, scales and scale fingerings. These custom elements can be anything you want, even wrong musically! You're in control! No more hide an seek to find that fingering you're looking for to put in a song! Simply spawn it! You can tell the app that CΔ is the chord with notes [C E B] and with fingering [x x x 2 2 2] if you want. Once defined, your custom elements are as first class citizens as the other ones. They are included in reverse searches, harmonizations, fingerizations, etc. So now, the app handle all the chords, all the scales, and all their fingerings, and this, for any tuning.
• In the same spirit, you can define custom "Symbols" and use them to write songs. Think of "/" or "2x" for example.
• A new grouping type called Collections. They can contains ordered lists of songs, chords, scales, etc. Chord and scale fingerings collections can be printed as PDF or exported as JPG or PNG images. Collections of songs can easily be exported as files and shared with other users of the app. They don't replace tags, they live beside (and collections can be tagged too!).
• You can have several PDF export templates.
• You can link auto scrolling with audio tracks from your iTunes music library (or by adding your own files to the app). You can adjust the speed and the pitch of the playback independently. So you can bring Jimi one semitone higher if you want to play along directly with your guitar standardly tuned for example.
• The import algorithm does a better job in recognizing chords/lyrics lines, as well as chord symbols.
• Lines jumps and inlined chords can manually be removed with one touch of a button.
• Backup archives can now contain all your data: songs, chords, scales, as well as collections and tags. They are also more efficient so a thousand of songs library archive should take less than a MB.
• Songs can be sorted by Author, Title or Last modified date, and displayed as a list or as thumbnails.
• You can define your own color set for dots coloring.
• Scale list can show intervals instead of notes.
• Songs views can optionally keep the screen on.
• Basic support of bluetooth page turners by responding to up/down or left/right keystrokes.
• On iPhone, the app remembers the last chord input method used. So if you use only the "Simple mode", you don't have to select it each time. The same for scales.
• The full screen fretboard is optimized and renders much faster.

• A lot of bugs have been crushed, and hopefully not too many introduced. If you spot one, don't hesitate to report it at

With all these new features, the app is more complex, but an extended documentation can now be found at

Please note that Dropbox sync was implemented and working but Dropbox has announced that they will make modifications which would have broken sync for the app in a few months. Dropbox sync is thus still planned but postponed to a next release.


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Customer Reviews

Over rated, difficult to use

I paid good money for this based on the reviews and I find it totally useless. Yes it has every possible chord you can dream of, but it's way too difficult to get to them, list them or use them in a song. When you finally do manage to put them in a list it may show as note relationships rather than a chord. Huh. It has a myriad of useless features and none of them are easy to do. It requires way too many steps to do anything. Way too many menus and different kinds of lists. Overkill on menus and very lacking in ease of use. I just spent 20 minutes pressing buttons to put a small group of chords in a pallet. Then I look and it's not even chord symbols in the pallet - it's note relationships. Oh that's probably another needless setting I didn't know about and I'm not going to waste my time doing it again! It's super difficult to add chords to a song or do anything relating to actually making music. Every thing this app does requires way too many steps. Not intuitive. Not easy to do anything. If you want to spend hours geeking out on your phone to chord symbols, you'll love it. If you want something the will help you actually play the guitar, this isn't going to help. Actually after trying about every chord app available, they are all terrible and this one is probably better than the others. Great on details, terrible on usability.

Brilliant App

The interface is bizarre in places. You often can't figure out how to do something. It's unlike anything you've used.... but you'll FORGIVE every one of those things when you realize how this app works. It constructs and manages chords and scales in the most versatile way I've ever seen. It doesn't just have chord and scale charts but it will "construct" chords and scales dynamically according to your playing and harmonizing needs. Kudos to the developer for going way beyond what anybody else has, plus giving you a good songbook so you can build songs using these wonderful tools, right inside the app. Be patient with it, and you'll be rewarded.

Gets better each time I use it

There is a lot too this app and a bit of a learning curve, but I seem to find a new way to use it every time. It does the basics you would expect in a chord app like showing you fingering variations, reverse chord lookup or key transposition. But there are also some unique features that help with figuring out or creating sings -- you can enter a partial list of chords and it will figure out all the potential scales,keys and modes that harmonize. Has helped a lot with me learning more about theory and understanding the fretboard better.

Chord! - Guitar Songbook, Chords and Scales
View in iTunes
This app is designed for both iPhone and iPad
  • $4.99
  • Category: Music
  • Updated:
  • Version: 2.5.1
  • Size: 35.7 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

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