1. About This Site
Jazz Standard Chord Online is a reference site for jazz standard songs, covering chord progressions, scales, and song lists. You can view chord charts in standard notation, change keys, and explore scales that work with each chord.
2. Chord & Scale Lists
Browse all chord types and scales from the navigation menu. You can filter by root note and category, or use the search box to find specific chords or scales quickly.
- Click a chord/scale name to see its tones, notation, and details.
- Compatible scales for each chord are listed on the chord detail page.
3. Song Chord Progressions
Select a song from the song list to view its full chord progression as standard music notation. Each chord is displayed with its tones highlighted.
- The chord name is shown below each staff bar.
- Click any chord name to open its detail page.
4. Transposing the Key
On the song page, a key control bar is shown just below the title. Use the ◀ Key ▶ buttons to step through keys one semitone at a time, or open the dropdown to jump directly to any of the 12 keys. The notation updates instantly.
- ◀ moves down one semitone; ▶ moves up one semitone.
- The dropdown shows instrument-friendly key labels (e.g. "Bb instrument key").
Random Key
The Random Key button in the action bar jumps to a random key (different from the current key). Use it for all-keys practice!
5. Favorites
Click the Add to Favorites button on any chord, scale, or song page to save it. Favorites are stored in your browser (no account needed).
- View all favorites from Menu → Tools → Favorites.
- The badge on the menu shows the total number of saved items.
- Clearing browser data will erase favorites.
6. Reverse Search (Find Chord by Notes)
Go to Menu → Tools → Reverse Search. Click keys on the interactive piano keyboard to select notes, and matching chords are shown instantly.
- Select 3 or more notes for better results.
- Click a result chord to open its detail page.
7. Sharing a Page URL
The Copy URL button copies the current page URL (including key settings) to the clipboard. Share it with others to open the same view.
You can also share directly to X (Twitter) or LINE using the buttons in the top-right of the navigation bar.
QR Code
The QR button generates a QR code for the current page URL. Scan it with a smartphone to instantly open the same song and key on another device.
8. Image Chart
The Image Chart button opens a printable image of the chord chart for the current song and key. Useful for bringing to rehearsal.
9. Chord Tone Highlight
On the song notation page, a toolbar above the score lets you highlight specific chord tones and chord progressions.
Chord Tones
Click 3rd, 5th, or 7th to highlight those chord tones on the notation. Multiple tones can be selected at once. This is useful for quickly spotting the color tones of each chord.
Chord Progressions
Click ii–V, ii–V–I, or V to highlight those progressions throughout the score. Ideal for identifying common jazz patterns and practicing them by ear.
