AI song chord & key analyzer
Find the chords of any song.
Transform any song into real-time changing chords in less than one minute from YouTube, social links or MP3/WAV files: chords, key and BPM synced to the track.
Transform any song into real-time changing chords in less than one minute from YouTube, social links or MP3/WAV files: chords, key and BPM synced to the track.
The chord analyzer listens to a recording and writes down what the harmony is doing, second by second. Paste a YouTube, SoundCloud, TikTok or Facebook link or upload an audio file, and the model estimates the key, the tempo and every chord change with its timing. The result is shown against the original video, so you can hear each chord as it is named, slow down a passage, or loop the bars you are learning.
It is built for players who learn songs by ear and want a head start, for teachers preparing charts, and for anyone who has ever paused a track a hundred times trying to catch a chord. If the song is already in our library of 180,000+ analysed songs, the chords open instantly.
Read live from the current plan settings, so this section always matches what the tool enforces today.
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Unlike a static chord site, the analyzer works on any recording, including live versions, covers and your own demos, and it keeps the chords locked to the audio so you can hear exactly where each change lands.
The analyzer takes a link from YouTube, SoundCloud, TikTok or Facebook, or an upload in MP3, WAV, M4A, FLAC or OGG. Links are fetched once, so the same song is never downloaded twice, and the audio is decoded on our servers, not in your browser, which is why a phone gets the same result as a studio machine.
Live recordings, covers, karaoke versions, rehearsal-room phone recordings and your own demos all work: the model listens to the harmony that is actually sounding, not to a database entry for the song. That is the difference between a chord finder from audio and a chord website, where somebody had to transcribe the song first.
Paste the video link and press Analyze. While the queue runs you see the progress; when the result opens, the video plays on the left and the chord timeline runs underneath it, highlighting the current chord as the song moves. Every change is placed on the beat grid, so you can see the chord AND hear where it lands.
Chord recognition is a probability model, not a musician with a score. On pop, rock, folk, worship and singer-songwriter material the major and minor triads are usually right and the changes land on the right beat. Sevenths, suspensions and slash chords are named where the model is confident; where it is not, it falls back to the simpler triad, which is still a playable chart.
The hard cases are the same ones that trip up a human ear: dense jazz voicings, heavily distorted guitars, fast changes inside a single bar, sections where the bass line implies a different root than the guitar, and songs that modulate several times. Treat the result as a very good first draft: it gets you to the right chords in a minute, and your ear finishes the last five percent.
The header shows the estimated key and tempo, followed by the main chords of the song, which is usually all a rhythm player needs to start. The timeline below is the full chart: one block per chord, sized by how long it sounds, so repeated progressions become visible as patterns rather than as a wall of symbols.
The grid view turns the same data into bars and beats, which is what you want when you write the song down. The instrument views translate each chord into a piano voicing and into guitar and ukulele diagrams, updated as the song plays, so you can follow along without knowing the shapes by heart.
A chart is only useful once the song is under your fingers. The result page is built as a practice room: loop a section until the change is clean, slow it down, take the singer out with the mixer, transpose to a key you can sing, and put a capo on the chart instead of on your neck.
When you can hear the changes coming, move to the ear training exercises and practise recognising the same progressions without the chart, or open the notation editor to write the song down properly. Songs you analyse can be kept in My Files, so a set list becomes a folder of ready charts.
Chord websites publish transcriptions people typed in: fast to open, often good for famous songs, silent for everything else and never in sync with the recording. Chord apps that listen to audio give you the chords for any song but usually leave you alone with the result.
Mazmazika does the listening and keeps the result inside a set of tools: the chords stay locked to the video, the library remembers what has already been analysed, and the same account holds the vocal remover, the notation editor, the piano and the ear trainer. You get the chords of any recording, and a place to learn them.
These songs have already been analysed: their chords, key and tempo open instantly, with the video in sync. The library holds more than 180,000 songs sorted by artist, free to browse.
Major and minor triads in pop, rock, folk and worship music are usually right; sevenths, suspensions and slash chords are named where the model is confident. Dense jazz voicings, heavily distorted guitars and fast changes are harder, so treat the result as a very good first draft and trust your ear on the details.
Yes. The key is estimated from all detected chords and shown above the timeline. Songs that modulate are labelled with the key that dominates; you will see the change in the chord sequence itself.
The analyzer reports the sounding chords. If you play with a capo, the capo and transpose controls on the result page rewrite the chart for your fret.
Over 180,000 songs that have already been analysed, each with its chords, key, tempo and a YouTube player, sorted by artist. Browsing the library is free with no daily limit.
Yes: export the chord sheet as a PDF and keep analyses in My Files. Which of these your plan includes is listed under Free vs Pro above; library songs are always free to open.
Analysis is computed on a shared server queue. The per-run length for your plan is listed under Free vs Pro above; long mixes are better cut into songs first.