Chord Trees vs Keystitch

Chord Trees is an interactive harmony practice tool by Nathaniel School of Music for musicians who want to see, hear, and understand how chords connect. Build chord trees from notes, explore diatonic harmony, compare piano inversions and guitar fingerings, and loop arpeggios with real instrument sounds. The app is designed for students, songwriters, producers, and teachers who want a visual way to internalize chord progressions. FEATURES * Interactive chord tree visualization * Piano chord inversions and keyboard layouts * Guitar chord fingerings and voicing options * Diatonic mode with major-scale harmony and modes * Arpeggio loop playback for ear training * Instrument combinations including piano, guitar, strings, brass, synth, harp, and marimba * Beginner, intermediate, and advanced learning modes * Works without an account BY NATHANIEL SCHOOL OF MUSIC Built for practical music learning, chord fluency, and composition practice.

See the music. Keystitch trains the skill underneath every musical skill: a clear mental picture of the keyboard, so intervals, keys, and melodies stop being abstractions and start being shapes you can see. Most music education starts a few steps too advanced — past the hidden mental machinery that lets a lucky few learn so fast. Keystitch takes the other road: short, focused drills, served a couple of minutes at a time, that build durable skill with minimal wasted effort — in an app that adapts to what you can actually do, not what a lesson plan assumes. WHAT YOU'LL DO • Hear a sequence of notes and track them on your mental keyboard — then tap the note you landed on, or just say it. • Read intervals, keys, and clefs until notation feels like moves on a keyboard and not a strange language. • Hear a phrase and sing or speak it back in solfège, graded note by note. • Practice hands-free: eyes closed, prompts spoken, answers spoken back. HOW IT WORKS • A journey that serves the right drill at the right level, two minutes at a time. • Answer by voice, by touch, or by singing — fixed-do solfège throughout. • Progress you can see: every answer feeds charts of what you know cold and what needs work. • Practice goals and streaks if you want them — and never a punishment if you don't. FREE, AND WHAT MEMBERSHIP ADDS Every drill, every level, and every mode is open to everyone. Free practice starts with a full opening hour, then four minutes a day — counted only while a question is on screen. Membership removes the time limit, and today's price is the Early Adopter price: it will go up, but if you join at it, your price stays yours for as long as you stay subscribed. Nothing leaves your device: no account, no tracking, no ads. See the privacy policy for the whole story. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Our promises to members: https://keystitch.net/terms Privacy policy: https://keystitch.net/privacy