Chord Progressions

The most common pop progression is I-V-vi-IV (like C-G-Am-F in the key of C). It appears in hundreds of hit songs because it sounds satisfying, familiar, and emotionally engaging. Other popular progressions include I-vi-IV-V (the 1950s progression), vi-IV-I-V (used in many modern pop songs), and I-IV-vi-V. Learning a handful of these patterns gives you the framework for most popular music. Guitar Wiz includes a library of chord progressions organized by genre and mood, with audio previews so you can hear how each progression sounds.

A chord progression is a sequence of chords played in a specific order. It forms the harmonic foundation of a song - the backdrop over which melodies, riffs, and solos are played. Progressions are usually described using Roman numerals relative to the key. For example, I-IV-V in the key of G means G-C-D. This system makes it easy to transpose progressions to any key. Guitar Wiz includes a library of chord progressions organized by genre and mood, so you can discover and practice the patterns behind your favorite songs.

The I-IV-V (one-four-five) is the most fundamental progression in Western music. It uses the first, fourth, and fifth chords of a major scale. In the key of C, that's C-F-G. This three-chord pattern drives thousands of songs across blues, rock, country, and folk. It works because the IV and V chords create natural tension that resolves back to the I chord, giving the progression a satisfying circular feel. Explore the I-IV-V and its variations in Guitar Wiz's chord progressions library, complete with audio previews in multiple keys.

The 12-bar blues is a 12-measure chord pattern using the I, IV, and V chords. The standard form is: I-I-I-I, IV-IV-I-I, V-IV-I-V. It repeats continuously throughout the song. This progression is the backbone of blues, early rock and roll, and jazz. Countless classic songs - from Robert Johnson to Led Zeppelin - are built on 12-bar blues. Guitar Wiz's chord progressions library includes the 12-bar blues in every key, so you can practice this essential pattern with audio backing.

Start by choosing a key. Write out the chords in that key (e.g., in C major: C, Dm, Em, F, G, Am, Bdim). Then experiment with different orderings, starting and ending on the I chord. A helpful approach is to borrow from proven formulas. Take a progression you like, change one chord, and see how it sounds. Or start with a mood - happy progressions tend to use major chords, while moody ones lean on minor chords. Guitar Wiz's Song Maker lets you select chords and hear them played back with accompaniment, making it a great sandbox for writing progressions.