Progressions in Db — 8-Voice Polysynth

Db major harmonizes to Db – Ebm – Fm – Gb – Ab – Bbm – C°; C# minor to C#m – D#° – E – F#m – G#m – A – B. Each chord links to its 8-Voice Polysynth voicings, and the page walks the changes with voiceLeadNearest — the engine that picks whichever next voicing moves the fewest keys.

Voice leading is a keyboard player’s home advantage: common tones stay under the same fingers, and only the moving lines move.