ChordFlow: Piano Chord Trainer

ChordFlow is a hardcore chord practice and auto-accompaniment tool designed for pop piano students, keyboardists, and music enthusiasts.

Whether you are mastering music theory, breaking through sight-reading barriers, or seeking inspiration for improvisation, ChordFlow provides the ultimate environment for your musical growth. Practice effortlessly on the highly responsive on-screen virtual piano, or plug in your MIDI keyboard for a seamless, tactile training experience.

CORE FEATURES:

[Virtual & Physical Integration]

• Plug & Play MIDI: Connect your external MIDI keyboard to instantly unlock the full 88-key view. Supports velocity sensitivity and sustain pedals.
• Smart Virtual Piano: Ergonomic dark-themed UI with adaptive key heights, ensuring excellent touch feedback on both iPhone and iPad.

[Millisecond Chord Recognition]

• Deep Analysis: Accurately recognizes 45+ chord qualities (including triads, 7ths, 9ths/11ths/13ths) and complex slash chords (e.g., Dm/G) in real-time.
• Waterfall Visualizer: Watch colorful note blocks cascade down as you play, with real-time chord names floating above your keys.

[3 Scientific Practice Modes]

• Zen Mode: Stress-free practice for building muscle memory. Features a "grace period" for legato pedaling.
• Groove Mode: Metronome-driven timing challenges. Train your rhythmic accuracy and hit the right chords perfectly on the beat.
• Fast Mode: The ultimate reaction test. Push your sight-reading BPM to the limit.

[Smart Accompaniment Machine]

• Improv Backing Tracks: Built-in classic pop progressions (e.g., I-V-vi-IV, ii-V-I). Start block or arpeggio accompaniments with one tap.
• Real-time Feedback: Play along with the track and get instant color-coded visual feedback on your accuracy.

[Why ChordFlow?]

• Offline First: No account required. Zero ads. 100% privacy-focused.
• Solo Developer Crafted: Built with pure passion for music, continuously evolving for piano learners.

Download ChordFlow today and let the harmony flow through your fingertips!