Analyze · Free
Get any track's BPM and musical key from one check
Add a song, stem or sample and read its tempo and key, such as 96 BPM in A minor. Both are saved with the file in your Library.
1,000 free tokens to start · No card needed · Cancel paid plans anytime
Do more with Tempo & Key Detector on Creator — from $9.99/mo, or ₹399/mo in India. 4,000 tokens a month. Billed $119.88 a year, or $12.49 month to month.
What you get
Mix in key, not by guesswork
Keys come back as a note and a scale, such as A minor or E-flat major, ready for harmonic mixing and writing new parts.
Both readings at once
Tempo and key come from the same check, so you don't need to tap along or run two separate tools.
Tagged in your Library
The BPM and key are saved on the file, so the track's page in your Library shows them afterward.
Who it's for
DJs
Know each track's BPM and key before you plan transitions and harmonic mixes.
Producers and beatmakers
Set a project to a sample's tempo and key before you build on it.
Singers and songwriters
Find a song's key before you write a topline or check that it suits your range.
Video editors
Get a track's BPM so you can time cuts to the beat.
Music teachers and students
Check the tempo and key of a piece you're learning or teaching.
When to use it
- You're about to mix or mash up two tracks and need to know if they fit
- A loop or sample came with no tempo or key
- You're writing a new part and need the song's key
- Players are about to jam along with a track you generated
- You want to cut a video in time with the music
What you can make with it
A session at the right tempo
Check a loop, then set AI Studio or your DAW to the BPM it reports before you build around it.
A key for live players
Check the BPM and key of a Soundverse generation so a guitarist or keyboard player can join in.
An ear-training check
Have students guess a song's key by ear, then check their answers with Tempo & Key Detector.
Cuts on the beat
Use a track's BPM to work out how long a bar lasts and cut your video on the beat.
A tempo check before Audio to MIDI
Find a track's tempo first and enter it in Audio to MIDI's Tempo (BPM) box, so the notes line up with the bars.
A key for your voice
Find the key of a song you're arranging and decide whether to transpose it to suit your voice.
A set list at a glance
Run it on your finished tracks, then open each one in your Library to see its BPM and key while you pick songs for a set.
Screenshots
Tempo & Key Detector is Soundverse's BPM and key finder: it analyzes an audio file and reports its tempo in beats per minute and its musical key, such as A minor or E-flat major. It is made for DJs, producers and remixers who need to match tracks, pick a key for a new part or tag a sample library. The reading appears in the chat and is saved to the file, so it shows with the track in your Library.
See it in action
- Every AI Tool in Soundverse “Analyze”: Tempo and Key, Audio to Prompt, Transcription and More From 0:11. The Tempo & Key Detector part of Soundverse's Analyze walkthrough, from input to result.
How it works
Open the detector
Open Tempo & Key Detector in the Analyze section of AI Tools, or choose Analyze, then Tempo & Key on a track in your Library.
Add your audio
Pick a track from your Library or upload one from your device. MP3, WAV, AAC, OGG, M4A, MP4 audio and FLAC files are accepted.
Run the detection
Click Generate in Chat. Agent One runs Tempo & Key Detector, which finds the tempo and the key in a single check.
Use the BPM and key
Read the BPM and key in the chat. Both are also saved to the file, so they appear with the track in your Library.
Why use Tempo & Key Detector
Both readings in one check
Tempo & Key Detector finds the BPM and the key together, so you don't need to tap along or run two separate tools.
Saved to your Library
The detected tempo and key are stored on the file, and the track's page in your Library shows its BPM and key afterward.
Key with its scale
Keys come back as a note and a scale, such as A minor or E-flat major, which is what you need for harmonic mixing and writing new parts.
Any track you can add
Check songs you made on Soundverse or files you upload, whether a full mix, a stem or a sample.
What it costs
Works on the Free plan. New accounts get 1,000 free tokens. On the Free plan it runs through Agent One, which gives free accounts 3 runs in all; sharing unlocks the 2nd and 3rd.
- Tempo and key of one track: 30 tokens (about $0.07–$0.09 on Creator, or ₹3–₹4 in India).
Agent One runs this tool for you, and the agent's own steps are metered on top of the tool's price: about 7 tokens a step in Lite mode, 54 in Standard mode and 128 in Pro mode, the default on paid plans.
Creator $12.49 a month, or $9.99 a month billed yearly ($119.88 a year) · Pro $31.24 a month, or $24.99 a month billed yearly ($299.88 a year) · Max from $72 a month, or $60 a month billed yearly ($720 a year).
In India (PayU): Creator ₹499 a month, or ₹399 a month billed yearly (₹4,788 a year) · Pro ₹1,299 a month, or ₹1,039 a month billed yearly (₹12,468 a year) · Max from ₹2,999 a month, or ₹2,399 a month billed yearly (₹28,788 a year).
Prices outside India are in US dollars, billed through Stripe; in India they are in rupees, billed through PayU. Monthly tokens reset each month and don't roll over.
Frequently asked questions
Is Tempo & Key Detector free?
Tempo & Key Detector is available on every Soundverse plan, including Free. Each detection uses tokens from your plan, and the panel shows the estimated cost before you run it. Soundverse is free to sign up, and new accounts get free starter tokens.
How many checks can I run with Tempo & Key Detector on the Free plan?
Three to start. On the Free plan, Tempo & Key Detector runs through Agent One, which gives free accounts three generations in total: your first check is ready right away, and each of the next two unlocks when you share Soundverse. Each check also uses a small part of the 1,000 free tokens you get at sign-up. Paid plans lift the cap and add monthly tokens.
How accurate is Tempo & Key Detector?
Tempo & Key Detector reports one BPM and one key for the whole file, so a song that changes tempo or key partway through gets a single overall reading. The detector also measures how confident each reading is, and some audio gives a less certain result, so confirm by ear when it matters.
What audio files does Tempo & Key Detector accept?
Tempo & Key Detector accepts MP3, WAV, AAC, OGG, M4A, MP4 audio and FLAC files, picked from your Library or uploaded from your device. You can check a full mix, a stem or a sample, including songs you made on Soundverse. You need the rights to anything you upload.
Can Tempo & Key Detector change the tempo or key?
No. Tempo & Key Detector only detects tempo and key; it doesn't time-stretch, speed up or transpose audio, and your file stays as it was. Use the reading to plan your next step, such as choosing a key for a new part or lining up tracks for a DJ set.
What is Tempo & Key Detector, Soundverse's BPM and key finder?
Tempo & Key Detector is Soundverse's BPM and key finder. It analyzes an audio file, reports the tempo in beats per minute and the musical key, such as A minor, and saves both readings to the file in your Library.
How do I find the BPM and key of a song?
Open Tempo & Key Detector in Soundverse, add the song from your Library or upload it from your device, and click Generate in Chat. Agent One runs the detector and replies with the BPM and key. You need the audio file itself, because Tempo & Key Detector reads the sound rather than looking a song up by title.
Can I find the song's sections and beats too?
Yes, with Section Analysis. It maps a song's structure, listing sections such as intro, verse and chorus with their start and end times, plus the tempo, and it also detects the beats and downbeats. Use Section Analysis to see where parts of a song fall, and Tempo & Key Detector when you need the key.
Where do I see the BPM and key?
Agent One posts the BPM and key in the chat when the check finishes. Tempo & Key Detector also saves both to the file, so the track's page in your Library shows its BPM, rounded to a whole number, and its key.
Know your track's BPM and key
Add a track and get its tempo and key from one check.
