Detect the tempo and musical key of any audio file instantly. Find the Camelot wheel code for harmonic mixing. Free, runs in your browser.
Analysis runs locally in your browser using advanced audio signal processing. BPM detection is typically accurate within 1-2 BPM for steady-beat music.
Find SoundCloud channels that match your genre and book premieres or reposts - directly from Premierely.
Explore channelsThe musical key of a song tells you which notes and chords it uses. Every song is built around a root note (like A, C, or F#) and a scale (major or minor). Major keys tend to sound bright and happy. Minor keys sound darker and more emotional.
When you know the key of two songs, you can tell whether they will sound good mixed together. Songs in the same key or in compatible keys blend smoothly. Songs in clashing keys sound dissonant and harsh when layered.
The Camelot wheel is a tool that makes harmonic mixing simple. It maps all 24 musical keys to a numbered wheel system. Each key gets a number (1-12) and a letter (A for minor, B for major).
The rule is straightforward: you can mix with the same number, one number up, or one number down. You can also switch between A and B at the same number. For example, if your current track is 8A (A minor), you can smoothly mix into 7A, 8A, 9A, or 8B (C major). This tool shows the Camelot notation alongside every key it detects, so you can plan your DJ sets without memorizing music theory.
Using this tool is simple. Click the upload area or drag your audio file onto it. The tool accepts MP3, WAV, and OGG files up to 50 MB. Once uploaded, the analysis runs automatically in your browser. No files are sent to any server.
Within a few seconds, you will see the detected BPM and musical key. The Camelot wheel code appears below the key name. Each result includes a confidence rating so you know how reliable the detection is.
You can also use the tap tempo feature below the upload area. Just tap a button in rhythm and the tool calculates the BPM from your taps. This is handy when you want to quickly check the tempo of a song playing through your speakers.
When you upload tracks to SoundCloud or submit them to premiere channels, having the right BPM and key information makes your music more discoverable. Channel owners and curators often filter submissions by tempo and genre.
If you are submitting tracks through Premierely, knowing your track's BPM and key helps you find the right channels. Channels that specialize in certain genres expect tracks within specific tempo ranges. Accurate metadata shows professionalism and increases your chances of getting accepted.
The BPM detection analyzes multiple segments of your track and uses autocorrelation to find the dominant beat pattern. For most electronic and pop music with a steady beat, accuracy is within 1-2 BPM. Tracks with irregular rhythms, heavy syncopation, or very sparse arrangements may produce less precise results.
Key detection uses chroma feature analysis based on established musicological profiles. It works best with melodic content - songs that have clear chord progressions and melodies. Heavily percussive tracks with little harmonic content may produce lower confidence results. The confidence percentage helps you judge how reliable each result is.
The Camelot wheel is a circular chart that maps all 24 musical keys to numbers and letters for harmonic mixing. The letter A means minor, B means major. You can mix songs that share the same number, or are one step apart on the wheel. This tool shows the Camelot code for every detected key.
Yes. This tool works on any modern mobile browser. The interface adjusts to smaller screens and all the analysis runs on your device. Just tap the upload area to select a file from your phone storage.
No. All processing happens locally in your browser using the Web Audio API. Your audio file never leaves your device. Nothing is uploaded, stored, or shared.
This tool supports MP3, WAV, and OGG files up to 50 MB. These are the most common formats for music production and distribution. If your file is in a different format, you can convert it first using a free audio converter.
Need to cut or trim audio? Use the MP3 cutter to trim tracks to the exact length. Add smooth fades with the audio fade tool, or convert audio formats with the WAV to MP3 converter. Just need a quick tap-tempo reading instead? Try the BPM counter. Every tool runs free in your browser with no upload.