CantuStudio vs Chord Navigator

CantuStudio helps choir directors, music teachers, church musicians, composers, and arrangers turn a melody into a structured SATB choir draft. Import or enter a melody, choose the musical context, generate a four-part draft, review voice leading, hear playback, and export PDF, MIDI, or MusicXML for rehearsal or further editing. The app supports English and Brazilian Portuguese, keeps language and region settings separate, and syncs accounts and generated work through the CantuStudio backend. Score engraving uses Verovio 6.3.0 under LGPL-3.0-or-later. Full third-party notices are available in the app. Terms of Use (EULA): https://www.cantustudio.app/termos Privacy Policy: https://www.cantustudio.app/privacidade

Chord Navigator shows you where a progression can go next — in real time, as you build it. Enter a progression and it detects the key, the roman numeral degrees and the function of every chord, then AI suggests the chords that can follow. Guitar and piano fingerings sit on the same screen. Features - AI progression guidance - real-time suggestions for where the progression can go next - Progression analysis - key, roman numeral degrees, and chord function, detected automatically - Scale view - scales and chord tones mapped onto the fretboard - Guitar diagrams - accurate fingerings, slash chords included - Piano diagrams - see the notes on a keyboard - MIDI playback - hear the chords as you build them For students working through theory and for musicians arranging on the spot. 10 languages, matched automatically to your device. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/