About the Mazmazika chord analyzer

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.

How it works

Paste a link or upload MP3, WAV, M4A or FLAC. The audio is decoded on the server.
A chord-recognition model reads the harmonic content in short windows, picks the most likely chord for each and smooths the sequence so brief passing notes do not flip the label.
The key is inferred from the whole chord set and the tempo from the beat grid, so the chart can also be exported as a chord sheet.
The page shows four synced views: the timeline, a chord grid, a piano keyboard and guitar or ukulele diagrams. Loop a section, transpose, or open the built-in vocal-remover mixer to hear the chords without the singer.

What musicians use it for

Learning a song faster: read the progression once instead of hunting for each chord.
Checking your own transcription against a second opinion.
Finding the key before you sing or jam, and transposing to a comfortable one.
Teaching: generate a chart for a student in a minute and mark the tricky bars.
Songwriting: see the progressions your favourite songs share.

Free vs Pro

Read live from the current plan settings, so this section always matches what the tool enforces today.

Free plan includes Chord, key and tempo analysis · unlimited browsing of the chord library · YouTube and SoundCloud links · Premium engine (deep learning) · Complex Chords engine · Standard engine · Facebook links · TikTok links · saving analyses. A daily processing allowance applies, and the page shows ads.
Pro adds harmonic separation setting · tuning fix · beat snap · chord floor · PDF chord sheet · transpose · capo · loop · My Files. No daily allowance and no ads.
Track length Chord analysis: 5 min per run on Free, 15 min on Pro.
Pro is one subscription for every Mazmazika tool, billed monthly, yearly or as a 24-hour pass. Prices are shown in your local currency on the pricing page, where discounts of up to 60% run through the year.

See the plans and current prices

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.

Chord finder from audio: which files and links work

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.

Best input: the studio version or a clean live take, with the intro and outro included so the key is estimated from the whole song.
Long mixes, DJ sets and podcasts should be cut into songs first; the length allowed per run for your plan is shown live under Free vs Pro above.
Instrumental, vocals-only or heavily compressed uploads are fine; the analysis does not depend on the singer.

Getting the chords of a YouTube song, step by step

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.

Loop the bars you are learning and slow the playback down; the chord names stay in sync.
Transpose the whole chart to your key, or set a capo and read the shapes for your fret.
Switch between the chord grid, the piano keys and the guitar or ukulele diagrams; they all show the same moment.
Open the built-in vocal-remover mixer to lower the singer and hear the harmony on its own.
Save the analysis to My Files or export the chord sheet, then come back to it without running the song again.

How accurate is automatic chord detection?

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.

Check the key first: if it looks wrong, the song probably modulates or sits between two closely related keys, and the chords will tell you which.
Compare the detected chords with the song's bass notes when a label looks odd; the analyzer marks slash chords when the bass moves against the harmony.
For a second opinion, open the same song in the library if it is already there, or run the studio version next to the live one.

Reading the result: key, tempo, chord grid and diagrams

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.

From chords to practice

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 analyzer versus chord websites and apps

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.

Popular songs from the chord library

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.

Browse the whole chord library →

Questions musicians ask

How accurate are the chords?

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.

Can it tell me the key of a song?

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.

Does it work with capo or in a different tuning?

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.

What is in the chord library?

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.

Can I download the chords?

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.

Why is there a length limit?

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.

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