Guitar Permutation Trainer vs Chord Navigator

Guitar Permutation Trainer helps you practice finger permutations across your fretboard with a built‑in metronome and adaptive difficulty. Practicing permutation exercises on instruments like guitar, bass, and piano targets the small, intrinsic muscles of the hand and fingers, such as the lumbricals and interossei. These muscles are responsible for fine motor control, finger independence, and strength. Repetitive, structured movement patterns improve neuromuscular coordination by reinforcing neural pathways between the brain and fingers - a process known as motor learning. According to research in kinesiology and occupational therapy, consistent practice builds endurance and prevents overuse injuries by promoting balanced muscle development. For developing musicians, this foundation is essential for achieving speed, accuracy, and long-term technical reliability without strain.

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/