Music Theory

Wolfram|Alpha's deep algorithmic knowledge makes it a perfect companion to explore computational music theory. Examine the sonic properties of musical notes, find named scales containing a given sequence of pitches, apply pitch‐set operations to note sets and scales and visualize chords, keys and more.


Explore and visualize properties of musical notes.

Compute the frequency and other properties of a musical note:

Specify the octave:

Calculate the note corresponding to a given frequency:

Analyze a sequence of notes:

Specify notes using MIDI codes:

Find the Parsons code for a note sequence:


Look up chords and generate keyboard and guitar fingering charts.

Get information about a chord:

Specify a chord using lead‐sheet notation:

Identify a chord from constituent notes:


Identify and explore intervals between notes and within chords.

Identify an interval:

Identify several intervals:

Key Signatures

Compute and compare properties of key signatures.

Get information about a key signature:

Compare key signatures:

Get specific information about a key:


  • Music Acts
  • Music Albums
  • Musical Instruments
  • People
  • Songs
  • Sound & Acoustics
  • Scales

    Look up scales or find scales containing a given sequence of notes.

    Get information about a scale: