How to Find the BPM of Any Song

The Golden Rule of Mashups

Have you ever tried to put a rap vocal acapella over a different instrumental beat, but it just sounded terribly wrong? That is a "Key Clash." For two audio tracks to sound good together, they must share the same Tempo (BPM) and be musically compatible (Key).

Step 1: Finding the BPM (Beats Per Minute)

The speed of a song is measured in BPM. If Song A is 120 BPM and Song B is 128 BPM, they will fall out of sync instantly. There are two ways to solve this:

• Automatic: Drop your file into our BPM Analyzer . The algorithm will scan the transients and give you the exact speed.
• Manual: Use the BPM Tapper . Play the song on Spotify or YouTube, and tap your keyboard's spacebar to the beat. The tool will calculate the average tempo.

Step 2: Harmonic Mixing (The Camelot Wheel)

Even if the speeds match perfectly, a song in C Major will sound awful played over a track in F# Minor. Instead of memorizing complex music theory, modern DJs use the Camelot Wheel system.

The Camelot system assigns a number and a letter to every musical key (e.g., 8A, 9B). Check your analyzed track against our interactive Camelot Wheel . The rule is simple: You can seamlessly mix any track into another track that has the same number, or is exactly one number higher or lower.

Step 3: Matching Them Up

If you find that your acapella is slightly off-key or at a different speed than your instrumental, use the Pitch & Speed Changer to pitch it up or down by semitones until the Camelot numbers match.