Built for producers, guitarists, remixers and songwriters who need the harmonic map of a track fast.
Analyze strummed acoustic guitar, electric guitar, piano, keyboard parts, vocal harmonies and full mixes without writing the chords by hand.
Vocuno detects overlapping notes first, then scores chord candidates from the active pitch classes instead of guessing from a single bass note.
Detect common triads, sus chords, diminished, augmented, sixth, seventh, major seventh, minor seventh, add9 and ninth-style colors.
The chord finder estimates the likely key and uses bass-note context to keep slash chords and inversions musically useful.
Every chord is attached to a start and end time, so you can jump to the exact section where the harmony changes.
Short note flickers and passing tones are merged into stable chord regions, which makes live guitar and piano recordings easier to read.
Copy a clean progression with timestamps, section-friendly line breaks and normalized chord names like Cmaj7, Am7, Gsus4 or D/F#.
Keep chord analyses in your workspace next to stems, vocals, MIDI, BPM results and Studio sessions instead of using a throwaway utility.
The detector is tuned for the harmony vocabulary producers see every day, from simple guitar songs to richer pop and dance progressions.
Core triads such as C, G, Am and Em for guitar tabs, piano charts and quick covers.
Suspended and added-tone colors like Dsus4, Asus2 and Cadd9 that appear constantly in acoustic guitar parts.
Dominant, major seventh and minor seventh chords for pop, R&B, jazz-influenced writing and sampled loops.
Bass-aware labels such as D/F# or C/G when the low note suggests an inversion or passing-bass movement.
Upload the audio, let Vocuno analyze the harmony, then save the progression.
Drop in an MP3, WAV, FLAC, M4A or other common audio file. Guitar, piano, stems and full songs are supported.
Vocuno transcribes the active notes, groups them by time window, estimates the key and scores the most likely chord for each section.
Review the timed chord progression, copy it into your session notes, or export a text chord sheet for production and rehearsal.
Chord recognition is a hard audio problem, but clean source material and the right workflow make the result much stronger.
A clean guitar, piano or instrumental stem gives the detector fewer competing notes than a dense master. If you have a full song, run stem separation first and analyze the harmonic stem.
Consistent tuning and tempo improve note grouping. Heavy vibrato, chorus, phasing and long reverb tails can make chord boundaries less exact.
Melodic fills can momentarily imply richer chords. Vocuno smooths very short events, but producers should still sanity-check quick transitions by ear.
The detected key helps resolve ambiguous chords. If C6 and Am7 both fit a section, the surrounding key and bass note help choose the most useful label.
Vocuno first converts the audio into note events, then groups notes by time, weights the pitch classes, estimates the likely key and compares each section against chord templates. The result is a timed chord progression rather than a single static guess.
Yes. Acoustic guitar is one of the main use cases. Results are best when the guitar is clearly recorded, in tune, and not buried under vocals, drums or heavy reverb.
Yes, but full mixes are harder because drums, vocals, bass and effects overlap. For the most accurate chord chart, analyze an instrumental, piano, guitar, or stem-separated accompaniment when possible.
You can upload common formats such as MP3, WAV, FLAC, AAC, M4A, OGG and WebM audio. If the browser can decode the file, Vocuno can analyze it.
Yes. Each detected chord has a start and end time, so you can line the progression up with a DAW session, rehearsal chart, remix arrangement or cover workflow.
Clean, isolated guitar or piano recordings usually produce strong results. Dense masters, detuned instruments, heavy effects and fast jazz-style substitutions are more challenging, so the output should be treated as a high-quality starting point that you can refine by ear.
Yes. The detector recognizes common extended chord families such as 7, maj7, m7, add9 and 9-style colors, and it can label bass-aware slash chords when the low note supports an inversion.
Yes. Vocuno lets you copy the chord sheet and download a text version, so you can paste it into notes, lyrics, session docs or your DAW project folder.
Yes. Audio to MIDI gives you editable note data, while Chord Finder gives you a readable harmonic summary. They work well together when you want both the exact notes and the song-level chord progression.
Yes. Upload a recording, review the timed progression, then play along section by section. It is especially useful for acoustic covers, remix references and quickly mapping out unfamiliar songs.
Upload guitar, piano, vocals or a full song and turn it into a readable chord chart with timestamps inside Vocuno.