ModusCycler — Modi & Jamming
MusicEducation

ModusCycler — Modi & Jamming

Robert Ulrich Seidel Dr · released 22 Jul 2026 · Open in App Store ↗

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Description

Turn chord progressions into music you understand. ModusCycler shows you the matching church modes and scales for any progression — on fretboard, TABs, piano and standard notation — and backs you up with a complete jam band.

JAM SESSION BUILDER

Build your own backing track in seconds: tap chords into the bar grid, get piano accompaniment with musical embellishments (a statistical improviser based on Chopin and Beethoven statistics), plus a precise metronome with swing — hit Play and jam.

Launch offer: everyone who joins in the first 6 weeks keeps the Jam Session Builder free forever — afterwards it is a €19.99 in-app purchase.

NEW: ESCALATOR — SCALE REFERENCE & SLIDES

All seven positions of the major scale as a printable Kiltz/CAGED and 3NPS reference, now right inside the app. The transitions trainer connects positions with slides — and the new out-of-scale slides reveal the pros' trick: change the entire scale family with ONE shape, using a slide formula like "C, 2 frets down and back". You always land on a chord tone, fingering included.

NEW: CHEATING CHEAT SHEET WITH SCALE-CHANGE COMBOS

Two linked wheels per chord: church mode and scale in shorthand. Below, every mode combination of your progression sorted by effort: no change, one change (there and back) or two — each with its slide formula. Pin chords to keep them fixed; the eScalator opens right with the matching keys.

SCALES FOR IMPROVISATION TUTOR

The modes·explorer derives church modes step by step on the fretboard: choose a position, understand the mode, play the scale. With Kiltz/CAGED boxes and all seven 3-notes-per-string patterns.

FOR EVERY MELODIC INSTRUMENT

ModusCycler shows you which notes fit over the chords — in standard notation and by note name, playable on any instrument. Ideal for improvising and melodic accompaniment on saxophone, clarinet, flute, trumpet, violin, xylophone, vibraphone, accordion, harmonica or voice. Fingering diagrams cover guitar and piano; the scale theory applies to all.

MORE FEATURES

Fresh tile design: four approaches (Global, Smart, Flexible, Cheating) and four views (fretboard, TABs, piano, notation) at a glance

Build progressions: wheel picker, modal interchange table, circle of fifths, song database

Smart analysis: matching modes with percentage ranking and character descriptions

Undo for chords and modes, key-change dialog with pin

Stage view: all scale diagrams full-screen — print-quality, with a transport bar

Notation with correct key signatures, deviations shown with accidentals

Real piano samples, metronome with sounds and swing

Tutorials: bird's-eye overview + 12-step tour, extensive online manual

6 languages: English, German, Spanish, French, Italian, Norwegian

For everyone who improvises, accompanies flexibly or finally wants to understand modes — guitarists, pianists, wind and brass players, string players, singers, songwriters and producers.

TRY THE FULL VERSION FOR FREE

On app.moduscycler.com the complete full version runs free in your browser for one day — after that it continues there with limited features. Try everything before you download the app.

Looking for modes, church scales, improvisation or jamming? ModusCycler (also "Modus Cycler") brings you scales, modes and chords for your next jam session — improvise on guitar, bass, piano and every melodic instrument.