REAL-TIME PITCH DETECTION

Learn Accordion.
The Natural Way.

Interactive visual guidance for keys and buttons. Play along with real-time microphone detection – comfortably and at your own pace.

Start Learning Free
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Features

Designed for every
accordionist

A direct visual link between your instrument and your screen — eliminating the friction of layout memorization.

Free Play C‑System sound map with real‑time pitch detection

Free Play & Sound Map

Play freely — every matching button across the entire fingerboard lights up instantly. A digital mirror that builds muscle memory without looking down.

Structured practice exercises button layout for C‑System accordion Structured practice exercises piano layout

Structured Practice

Fingering basics, scales, arpeggios, melodies, chords — with note-by-note verification, amber key hints, red-flash feedback, and star scoring.

Mobile‑friendly C‑System button accordion layout illustration Mobile‑friendly piano accordion layout illustration

Music Stand Ready

Viewport-scaled buttons for tablet landscape on a music stand. Compact or full layout, horizontal scroll, and live mic sensitivity control.

Customizable C‑System fingerboard canvas for button accordion Customizable piano accordion fingerboard canvas

Fully Customizable Canvas

Adjust the fingerboard position to match your screen and instrument setup. Fine-tune the mic threshold with a live volume meter.

Mobile Support

Play on the Go

Accodrive scales beautifully to smaller phone screens. Open the app in your browser in either orientation to practice anywhere.

Portrait Orientation

Accodrive mobile portrait view of C‑System layout

Landscape Orientation

Accodrive mobile landscape view of button accordion layout

Universal System & Kind Support

Interactive Fingerboards • 7 Layout Variations
Kind:
Auto-cycle
Standard C-System chromatic button accordion fingerboard French Musette 4-row C-System button accordion fingerboard Swedish / Finnish 5-row C-System button accordion fingerboard Standard B-System chromatic button fingerboard Balkan 6-row B-System button accordion fingerboard Simple Bayan 3-row button accordion fingerboard Piano accordion treble keyboard
C-System • 5 Rows

Standard C-System (5 Rows)

The quintessential European chromatic layout. Features 3 primary rows plus 2 duplicate auxiliary rows (rows 4 & 5) for effortless transposition and alternate fingerings.

Designed for

C-System Traditions

From classic 5-row French/Italian accordions to 4-row Musette and Swedish/Finnish fingerboards, Accodrive mirrors your instrument's exact physical geometry.

Designed for

B-System & Bayan Virtuosity

Full support for Eastern European and classical Bayan, featuring 6-row Balkan virtuoso grids and 3-row Simple Bayan layouts with responsive button scaling.

Designed for

Piano Accordion Keyboard

Piano accordion keys are mapped to a vertical music-stand view, preserving natural keyboard spacing and responsive pitch detection for both hands.

Intelligent Engine

Smart Kind Compatibility

Accodrive automatically checks if exercise fingerings fit your active kind, ensuring seamless learning without incompatible auxiliary row fingerings.

See it in action
Scales & Arpeggios

Master Every Key & Fingering

Practice major, minor, and triad arpeggio exercises across all 12 keys with dynamic stave notation, ergonomic fingering guides, and real-time audio verification.

Scales and Arpeggios Exercise List and Key Selection in Accodrive

Comprehensive Scale & Key Catalog

Select any root note and scale type — Natural, Harmonic, or Melodic Minor, Major scales, and Triad arpeggios in root and inverted positions across 1 and 2 octaves.

Interactive Stave with Auto-Fingering and Pitch Verification in Accodrive

Interactive Stave & Auto-Fingering

Follow live sheet music notation with ergonomic accordion fingerings (1–5) tailored to your layout. Pitch detection verifies your playing note-by-note with instant guidance.

Left-Hand & Systems

Full Stradella Bass & Chord Support

Accodrive supports three right-hand systems (C-System, B-System, Piano Accordion) as well as left-hand bass/chord training and free play mode. Perfect for practicing each hand separately.

Stradella Left-Hand Single Bass Practice in Accodrive

Interactive Bass Practice

Master single bass notes and basic accompaniment patterns. Real-time feedback verifies your pitch accuracy note-by-note.

Stradella Bass Basics Course Selection List

Structured Bass Curriculum

Follow exercises designed for the left hand: from basic single bass rhythms to full major and minor chord progressions.

Vertical Stradella Bass Layout and Chord Recognition in Free Play

Stradella Bass Board

Interactive vertical 6-row Stradella keyboard mapping. Visualizes fundamental basses, counterbasses, and chords in real time.

Pitch Detection VOD

Real-time audio signal analysis

See how Accodrive captures frequency harmonics from your instrument's reeds, filtering bellows noise and mechanical sound decays to light up keys exactly when you play them.

Open Learning Module

Frequently Asked Questions

How to memorize the C-System accordion fingerboard map?
Use Accodrive's real-time sound map: play freely on your instrument and watch matching buttons light up on-screen. Repeated visual feedback builds spatial memory of the chromatic button accordion layout within a few practice sessions — no sheet music required.
How to practice chromatic button accordion without sheet music?
Accodrive's Free Play mode acts as an interactive accordion fingerboard trainer. Your microphone detects pitch in real time, highlighting the correct button on the on-screen grid so you can explore scales, arpeggios, and melodies by ear while building layout knowledge.
Can I use an interactive sound map for B-System Bayan practice?
Yes. Accodrive fully supports the B-System Bayan layout alongside C-System and Piano Accordion. Switch systems with one tap — the real-time pitch detection and fingerboard map adapt automatically to the mirrored button geometry of the B-System.
How does web-based microphone pitch detection work for accordion?
Accodrive uses the Web Audio API: a low-pass biquad filter dampens harmonics above ~800 Hz, an RMS threshold silences bellows noise, and a stability buffer confirms the pitch over several frames before updating the on-screen display — delivering accurate, flicker-free real-time detection.