Functional Harmony vs MusicKeyRoll

Functional Harmony is a fast music theory desk for players and students. Build chords and scales from a root and quality. Identify harmony from notes. Or just Ask—type a chord, scale, or note stack in plain English and jump straight to the answer. SCALE FINDER • Choose a root and scale quality—major, minor, modes, pentatonic, and more • See every degree spelled clearly for practice and ear training • Perfect when you need a quick scale finder without flipping textbooks CHORD BUILDER & CHORD ID • Spell major, minor, sevenths, suspended, augmented, diminished, and more • Stack notes in the Notes tab to identify chords and intervals (reverse lookup) • Piano-friendly note entry with accidentals—great as a chord identifier ASK • Natural-language queries: “C major 7”, “F# dorian”, “C E G” • Live preview before you open Chords, Scales, or Notes • Built for homework, rehearsals, and songwriting sessions WHY FUNCTIONAL HARMONY • Chords, scales, and note identification in one app • Clean, bottom-anchored controls designed for one-handed practice • No accounts, no clutter—just theory when you need it Whether you call it a scale finder, chord identifier, or harmony lab, Functional Harmony keeps tonal music theory at your fingertips.

Elevate your piano sight-reading and musical skills with this versatile practice app, compatible with both MIDI keyboards and an intuitive on-screen keyboard. Explore a wide range of features designed to help you progress step-by-step: • Key Signature Selection: Easily choose your key signature using an interactive circle of fifths. • Sight-Reading Exercises: Improve note recognition with treble, bass, or grand staff reading drills. • Scale Drills & Fingering Guidance: Master scales and appropriate finger techniques. • Chords & Progressions: Strengthen your harmonic foundation through focused chord training and chord progression exercises. • Hanon Exercises: Enhance agility and technique with classic Hanon drills. • Simple Repertoire: Practice short, beginner-friendly pieces to apply your new skills. • Authentic Sounds: Experience realistic audio options, including General MIDI instruments or a rich Steinway Grand Piano sound. Develop your sight reading skills, speed, and confidence—one note at a time.