Harmonious: Music Theory 2.1.0

Harmonious is an exhaustive piano and guitar chord and scale app designed for students, composers, songwriters, arrangers, and working musicians.

If you could enhance your music theory knowledge with a mentor who holds all the answers, Harmonious is here. It allows you to build upon your existing knowledge while exploring a vast range of musical options. Offering the most comprehensive chord and scale map, it unveils extensions, substitutions, and chromatic flavors situated at the intersection of the familiar and the exotic. By examining connections through chords and scales, it bridges harmony and melody.

The app features a clean, clear design with bold visualizations and simple interactions to streamline your experience:

• Everything is interconnected! Easily navigate by tapping, utilizing the back button or index button to swiftly jump to different sections of the app.
• Benefit from tutorials and over one hundred glossary entries that provide a foundational understanding of music theory. Dozens of animations and audio examples aid in grasping concepts from musical set theory, traditional harmony, and jazz theory, presenting a unique perspective.
• Opt for the interactive piano search function to discern how notes form chords and scales just by selecting them. Learn how to play a chord or scale, as well as when to play it in terms of its parent keys, modes, or scales.
• With the interactive fretboard search for guitar (standard tuning), identify what you are playing, discover where to play similar patterns, and comprehend the harmonic significance of chords.
• Utilize the Audio Feature to hear chords and scales audibly and listen to notes as you input them. Toggle between multiple instruments or mute for silent learning.
• Access an interactive circle of fifths reference showcasing all major and minor keys along with triads and seventh chord functions with a simple flick. Extensions like ninths, elevenths, and thirteenths are also available at your fingertips.
• Explore interactive scale and mode diagrams that demonstrate voice-leading relationships between unordered and ordered 7-note collections. Navigate through various scales with ease.
• Experience Haptic Feedback on supported phone devices for enhanced tactile interaction.
• Share valuable insights by utilizing links to refer back or pass along knowledge to other musicians.

The exhaustive reference within Harmonious encompasses:

• Musical set theory reference using Forte codes and prime forms as the foundation
• Roman numeral functions detailing all chords in each key including secondary dominants
• Comprehensive coverage of every possible triad and seventh chord
• In-depth exploration of every mode across various scales
• A detailed breakdown of compatible chords for each mode including extensions

Harmonious aims to be a thorough, authoritative resource encompassing all aspects of harmony within twelve-tone equal temperament and related tunings. Drawing on musical set theory, atonal theory, jazz theory, harmony, music theory, it aligns with Professor Dmitri Tymoczko's framework outlined in the textbook "A Geometry of Music." For further details and references, please visit the website.

Beyond providing a comprehensive reference, Harmonious seeks to unravel the complexity and depth inherent in harmony with precision.