“120 PianoChords” (often stylized as 120PianoChords) is a digital cross-platform interactive chord dictionary and learning application created by software developer Max Schlee and published via Neonway.
Rather than being a narrative book or a traditional academic course, it functions as a highly visual “look-up and practice” system designed to strip away the density of standard sheet music notation. It allows beginners and intermediate players to immediately play songs using keyboard harmony. 🎹 Core Mechanics of the System
The “120” in the title signifies that the program isolates and maps out 120 of the most commonly used chords in modern music across all 12 musical keys. This includes essential building blocks like major and minor triads, but scales up to advanced color tones used in jazz, gospel, and pop.
For every single chord, the system provides three simultaneous visual anchors:
The Keyboard View: Directly highlights the precise keys you need to press on a virtual piano.
The Photo/Finger View: Shows high-resolution, color-coded graphics detailing exactly which fingers to use for either the left or right hand.
The Staff Notation: Displays the chord written as standard musical notes to help build parallel sight-reading skills. 🛠️ Key Features and Functionality
The platform relies on active user interaction to reinforce music theory:
Auditory Feedback: Every chord can be triggered to play back real audio, helping users match the physical geometry of the keys with their internal ear training.
Progression Builder: Users can select individual chords, line them up via a custom drag-and-drop workflow, and save their own chord progressions. This is widely used for mapping out backing tracks or sketching songwriting ideas.
Instant Transposition: If a song is too high or low for a vocalist, the system allows the user to mathematically shift a sequence of chords into a different key without having to re-calculate the intervals manually. 🎼 The Theoretical Framework
The underlying theory follows an “⁄20 rule” of keyboard performance. Instead of forcing a student to spend months memorizing abstract interval rules or major scale formulas, the system provides immediate access to the chords that define the vast majority of Western song construction. It systematically covers:
Basic Triads: Major and minor configurations (the foundational “sad vs. happy” tonalities).
Suspended & Altered Chords: sus2 and sus4 voicings to create musical tension.
Seventh & Extended Chords: Major 7ths, minor 7ths, dominant 7ths, and 9ths to introduce jazz and gospel textures. 💻 Availability
The application is cross-compatible across the mainstream desktop and mobile frameworks. You can find it hosted natively on the Microsoft App Store for Windows devices, as well as the Mac App Store for OS X systems.
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