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C Major
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Browse all tools ↗Piano chord finder: notes, inversions and playback
Choose a root and quality, or select notes on the keyboard.
OpenScale explorer: piano notes, degrees and modes
Choose a tonic, scale or mode, then follow each degree on piano or guitar.
OpenInteractive circle of fifths: keys and relative minors
Choose a key to inspect its signature, relative minor and nearby keys.
OpenInterval finder: notes, semitones and spelling
Build an interval from a note, or identify the interval between two written pitches.
OpenDiatonic chord calculator: triads and seventh chords
Choose a scale collection and inspect its triads or seventh chords.
OpenChord transposer: move a progression to a new key
Arrange your own chords, then transpose the sequence without changing its chord qualities.
OpenGuitar fretboard: scale notes and degree finder
Explore scale and chord tones on a standard-tuned guitar, with note names or degrees.
OpenOnline metronome: tempo, accents and visual beats
Set a tempo and beat grouping, then start a steady pulse when you are ready.
OpenKnow what you’re hearing.
See the method behind every diagram.
Notes are named using standard musical notation.
An octave is divided into twelve equal pitch steps.
The reference pitch for playback on this site.
A better feel for the basics.
Blog ↗Hear what an inversion changes
Keep the same three notes, change the lowest one, and listen to what stays familiar as the bass moves.
Read articleSame sound, different spelling
A piano key tells you where a pitch sounds. Its written name also tells you what that pitch is doing.
Read articleCmaj7 and C7: hear the seventh
Keep C, E and G steady. Compare B with B-flat to hear the difference between Cmaj7 and C7.
Read article