Interactive Music Theory Cheat Sheet
An interactive music theory cheat sheet with scales, diatonic chords, notes on the piano, notes on the staff and key signature for all major and minor keys.
Interactive Music Theory Cheat Sheet launched on September 13, 2022 with 6 votes, #1,157 of 3,464 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 4 years on.
What it does
✨🎵✨ An interactive music theory cheat sheet to get all you need at a glance: keys, scales, modes , notes, chords and intervals . Just select a major or minor key and you'll get the notes of the scale, scale formula, the relative major or minor, modal scales for that key, scale degrees/intervals, the key signature, the diatonic chords, the diatonic 7th chords, the chord functions and the relationship with other keys on the Circle of Fifths (aka circle of fourth, when going counter-clockwise). → For more reference on chords and scales, you may like this scale formula chart , chord formula chart and this list of chords . The ♭ ').replace('#', ' ♯ ')" > scale is a theoretical scale that…from muted.io
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Interactive Visuals for Major and Minor Scales on Piano2023 · muted.io · ▲10Interactive piano reference for major and minor scales (diatonic scales), their notes, note placement on the piano keyboard and their relative minor or major.
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- SHShow HN Pianoboi – displays sheet music as you play your piano2025 · pianoboi.site · ▲109
I made a software library for displaying piano music 7 years back, and recently ported it to the web (which is now easier than even ever). It displays sheet music as you play, and let's you take snapshots of specific chords, then keeps a running list of chords as keyboard visuals (instead of just displaying sheet music). Just a simple tool for songwriting/ figuring out songs by ear, or just understanding music key theory (which I'm admittedly a still a beginner at).
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