What's New

This version adds triple resolution graphics for iPhone 6 Plus and improved iOS 8 support.

App Description

Harmony is a difficult and complex part of music theory with chord spelling and construction at its very basis. What is a chord? Is it C - E - G# or C - E - Ab? You like the sound of those four notes on your guitar, but is it a chord? And if so, what is it called? These are typical issues facing the creative musician when trying to bring a new song to paper. Music theory is often complex and correctly spelling a chord that may have sharps and flats, double flats or double sharps is not always easy. This is where the traditional chord books and apps become useless and ChordLab steps in.

ChordLab differs in its top to bottom approach that begins with a basic chord form which can then be put through permutations like inversions and different voicings. It features all the standard voicings commonly used in Jazz, Rock, Pop, and elsewhere. In that sense it serves as a color palette or sounding board that automatically generates valid fingerings for the piano and guitar in addition to the correct music notation. The result is a much deeper and better understanding of the underlying principles of harmony.

The chord analysis feature in ChordLab allows you to input 3 or 4 notes to determine their harmonic quality. ChordLab will always find the enharmonically simplest solution and does not require you do know whether a note is called G# or an Ab. C-Gb-Bb-D for example will resolve to a D aug7 chord with a correct spelling of C-F#-A#-D. This is especially useful for guitarists that seldomly encounter chords in root position due to the tuning of the instrument.

Another essential tool found in ChordLab is the Circle of Fifths which is implemented interactively. It not only allows to look up key signatures for major and minor, but all major modes like dorian, phrygian, etc. Additionally ChordLab displays degree structures for a key in standard Roman numerals. This is extremely useful when putting together chord progressions.

ChordLab addresses the needs of a somewhat advanced audience with a sharp focus on elementary areas like chord spelling, voice leading, four-part reduction and similar topics that are so essential to many modern music styles. By simultaneously addressing both main harmony instruments in modern music it also becomes an invaluable tool to the composer/arranger of today that needs to evaluate the playability of certain voicings. In short, ChordLab goes far beyond the generic chord app that only aims to show a diagram or two. While providing valuable fingering information - albeit in a context firmly based in theory - with its included interactive circle of fifths, chord finder, rating system, history, tunings adaptation and so many other features, ChordLab is the one harmony tool one finds oneself coming back to again and again.

Features:
Chord spelling for all common chords found in fake books
Music notation and textual representation of chord tones
Chord analysis to correctly identify triads and seventh chords
Alto, bass, tenor, treble clefs, TAB and grand staff
All possible inversions
All standard voicings
All common open and alternate tunings presets (guitar)
Alternate fingerings (guitar)
Virtual piano and guitar instruments
Chord tone labeling in instrument views
Chord rating
Automatic reduction to 3 or 4 voices
Automatic root and fifth substitution
Key signatures for all major modes (circle of fifths)
Degree structure in Roman numerals for all major modes (circle of fifths)
Support for left-handed players
High quality guitar and piano samples
European and American chord notation
Arpeggiated and block chord playback
MIDI support
Support for sound libraries
Support for 4" screen
High resolution graphics for Retina®
Academic discounts available

For more screenshots and several videos of the application in action, please visit the website indicated below.

App Screenshots

(click to enlarge)

ChordLab screenshot 1 ChordLab screenshot 2 ChordLab screenshot 3 ChordLab screenshot 4 ChordLab screenshot 5

App Changes

  • February 27, 2015 New version 3.6.0
  • December 02, 2014 Price increase: $1.99 -> $3.99
  • December 01, 2014 Price decrease: $3.99 -> $1.99
  • October 27, 2014 Price decrease: $4.99 -> $3.99
  • December 07, 2013 New version 3.5.6
  • September 20, 2013 New version 3.5.5
  • September 04, 2013 Price increase: $3.99 -> $4.99
  • September 04, 2013 New version 3.5.4
  • August 10, 2013 Price decrease: $4.99 -> $3.99
  • August 04, 2013 Price decrease: $5.99 -> $4.99
  • August 01, 2013 Price increase: $4.99 -> $5.99
  • July 28, 2013 Price decrease: $5.99 -> $4.99
  • July 17, 2013 New version 3.5.3
  • June 30, 2013 New version 3.5.2
  • June 13, 2013 New version 3.5.1
  • March 02, 2013 Price decrease: $7.99 -> $5.99
  • March 01, 2013 New version 3.1.0
  • February 20, 2013 New version 3.0.2
  • February 10, 2013 New version 3.0.1
  • February 02, 2013 Price increase: $5.99 -> $7.99
  • January 28, 2013 New version 3.0.0
  • January 23, 2013 Price decrease: $7.99 -> $5.99
  • January 10, 2013 Price decrease: $9.99 -> $7.99
  • January 09, 2013 Price increase: $4.99 -> $9.99
  • December 21, 2012 Price decrease: $9.99 -> $4.99
  • September 19, 2012 Price increase: $6.99 -> $9.99
  • May 09, 2012 Price increase: $4.99 -> $6.99
  • May 01, 2012 Price decrease: $9.99 -> $4.99
  • March 30, 2012 New version 2.0.7
  • March 02, 2012 Price increase: $6.99 -> $9.99
  • February 14, 2012 Price decrease: $9.99 -> $6.99
  • February 02, 2012 New version 2.0.6
  • October 19, 2011 New version 2.0.5
  • September 06, 2011 Price increase: $6.99 -> $9.99
  • September 05, 2011 Price decrease: $9.99 -> $6.99
  • August 23, 2011 New version 2.0.2
  • June 25, 2011 New version 2.0.1