Music Guides
Step-by-step guides to the questions musicians, producers and DJs ask most: how fast a song is, what key it's in, which chords go together and how scales work. Each guide links to the free tool that does the job.
Start here
- What key is this song or chord progression in?How to Find the Key of a Song
- How fast is this song?How to Find the BPM of a Song
- Which chords go together in a song?Common Chord Progressions Every Songwriter Should Know
- Which scale should I play?Music Scales Explained: Major, Minor, Modes and More
All guides
How to Find the BPM of a Song
Find any song's tempo three ways: detect it from the audio, tap along, or count the beats and work it out.
5 min readUpdated
How to Find the Key of a Song
Find any song's key from the audio, from its chords, or by ear — and tell a major key from its relative minor.
6 min readUpdated
Common Chord Progressions Every Songwriter Should Know
I–V–vi–IV, I–IV–V, ii–V–I, the 12-bar blues and minor-key progressions, with the chords written out and how to use them in any key.
4 min readUpdated
Music Scales Explained: Major, Minor, Modes and More
Major, minor, pentatonic, blues and the modes, each spelled out with its notes, and which scale to play over which chords.
6 min readUpdated