British Invasion Progression Generator

The British Invasion Progression Generator is a single HTML file. No installer, no plugin, no account, no internet needed after download.

Curated diatonic and borrowed-chord pool — flat-seven, minor-four, secondary dominant for major keys; picked-up major IV/V for minor keys — modeled on 1960s British pop harmonic habits.

Same 24-key range. Full 4-part song structure per generation.

Features:

• All 24 keys — every major and minor key.
• Full song structure, not a two-chord loop.
• One-click regeneration.
• Native MIDI export — writes a standard .mid file in-browser, drag into any DAW.
• Chord names only, no tab or notation — play it your way.
• Zero install, works fully offline after download.
• MIDI export is reference-only: flat, unhumanized block triads, no velocity variation, no swing. Built for mapping a progression fast, not for dropping into a track as a finished part.

WHO THIS IS FOR
Guitarists and keyboard players chasing that specific '60s pop lift, songwriters who want a period-accurate harmonic starting point, DAW users who want quick chord-reference MIDI to build around.

WHAT'S INCLUDED
british_invasion_chord_generator.html.

LICENSE
Single-user, individually watermarked per purchase. Not for redistribution or resale. Commercial use of generated chords and MIDI output is permitted — you own what you create.

• The generator runs in any browser. MIDI export works with anything that reads standard .mid — REAPER, GarageBand, Ableton, Logic.

• Treat every progression as a starting point, not a rule. These are theory-sound suggestions, not a script. If a chord technically "works" but doesn't sit right in your hands or your ear wants something else, swap it. Some of the best moments in a song come from a player's own instinct overriding what's "correct" on paper. Use the tool to get unstuck, then make it yours.

• Does it play sound? No — chord names on screen, optional silent MIDI export (note data, not audio) for DAW reference.
• Can I sell songs built from this? Yes. No royalties or attribution owed.
• iPhone? Desktop and Android work fine. iPhone's Quick Look preview doesn't run JavaScript on local HTML files, so tapping the file directly won't work — an Apple restriction, not a bug.

$9.99. Watermarked per purchase, delivered within 24 hours (usually sooner).

2026 Drew Gold Entertainment, Inc. All Rights Reserved.