Lazy Guitar is a free tool that builds playable chord progressions for guitar from a key, a starting chord and a style. It shows chord names, Roman numerals, Nashville numbers and guitar diagrams. Please enable JavaScript to use it.
A tool that builds playable chord progressions for guitar from a key, a starting chord and a style. It shows the chord names, Roman numerals, Nashville numbers and guitar diagrams.
Pick a key (for example C major), set style to Pop and generate. I-V-vi-IV in C is C–G–Am–F. Click any chord to see open and movable shapes. Change the key to transpose the same Roman numerals to all 12 keys.
Roman numerals (I, IV, V, vi) and Nashville numbers (1, 4, 5, 6m) name a chord by its place in the key, not by letter. That is how one progression works in every key.
Keep the same starting function (I, vi, IV…) and change the Key control. Lazy Guitar rebuilds the letter names and the guitar shapes. A chord you like can also list other keys it belongs to (for example Am is vi in C and i in A minor).
Yes. Each chord offers alternative voicings: open shapes, movable E A and D forms, compact shapes, and jazz voicings (shell, drop 2, drop 3) when the style and complexity allow.