This content is for an older version of Synfire. The current version is more streamlined and advanced, but most of the functionality shown here still exist.
Build chord progressions from pressing keys on your keyboard. Synfire estimates the most likely chord in a sequence of chords.
An example progression is built in the video, that uses a chromatically descending bass movement, leading to "out of key" chords that still form a musically sensible progression. You will probably notice that this progression is one of the templates of the Harmony parameter.
Hint: Enjoy HD resolution by picking it from the cogwheel icon at the bottom of the player. Then double-click on the image to go full-screen, or visit YouTube to use their large wide-screen playback mode.