Chord progressions are sets of two or more chords in a piece of music. The word progression relates to the order that the chords are played in, and therefore how the piece of music develops over time. Chords in a progression are normally represented by Roman numerals, and are determined by the key of the piece of music.
Chord progressions are the road-map that tells music where to go: the “I-V-vi-IV” in a pop chorus, the “ii-V-I” every jazz musician knows, the dramatic minor-key cadences in film scores. When your ears can spot those routes on first listen, you can:
Hit Play, hear a short series of chords, and name the progression by Roman numerals. Start with classics such as I-IV-V or ii-V-I, then unlock richer sequences as your accuracy climbs. Within a few sessions, you will feel the “direction” of a song before the lyrics even start.
A mini score appears with several chord slashes above the staff. Identify the harmonic path and you link sheet music to sound - perfect for sight-reading lead sheets or charts on the gig.
Click Preferences and dial in exactly how challenging each round will be:
Choose the scale:
Pick the progression length:
Explore Two Handy Harmony Tools:
Need fresh material to challenge your ear? Open the Progression Generator and click Create. The tool instantly cooks up a chord sequence in any key, complete with Roman-numeral labels. Loop the playback, clap or strum along, then jump back into the Progression Exercise to see if you can spot the same moves by ear. It’s a perfect way to bridge “random drills” and real-world harmony.
The Circle of Fifths tool lays out every key in a single visual wheel. Spin to the key you’re practising, glance at its diatonic chords, and note the most common modulations. Keep the circle open in a side tab while you train; when a ii-V-I or a sneaky secondary dominant shows up, you’ll see exactly where it lives in the key signature - and why it pulls your ear the way it does.
Use these two tools as a quick reference between practice rounds, and the numeric progressions you hear will start connecting to the larger harmonic map in your head.
After five focused minutes with the drills, jump into ToneGym’s progression-based game Route VI for real-time pressure.
Join ToneGym today and unlock the full ear-training program that sharpens your listening, speeds up your playing, and lifts your musicianship to the next level.