Thelonious vs VI

Thelonious is a music theory app designed to help you understand keys, chords, scales, and harmony through clear, visual layouts. Explore major keys, review scale notes, and study diatonic chords in a format built for both learning and quick reference. Thelonious connects theory to real playing with chord progressions, guitar mode charts, and CAGED system material. Use Thelonious to: • Explore major keys and their scale notes • Understand diatonic chords and key relationships • Learn relative minor and dominant chords • Study chord progressions and harmonic movement • View guitar modes and CAGED chord charts Whether you’re learning the fundamentals or deepening your understanding of harmony, Thelonious makes music theory easier to read, understand, and apply.

VI-Stage Performer is a score and prompter app for musicians, bands, and live performers. Create your song library, organize setlists, and keep scores, lyrics, chords, notes, and prompts ready on stage. In Standalone Mode, you can create songs and setlists directly on your device, making VI-Stage Performer useful for rehearsals, practice, and live shows even without the desktop app. When used with the VI-Stage desktop app, simply choose your performer role and your content is synced automatically, so each musician gets the right scores and prompts for the show. Built for concerts, worship, theatre, bands, and any performance where everyone needs to stay prepared and in sync.