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Learn Music Theory, "Any key's entire harmonic structure at your fingertips" with music theory tools.

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Interactive
music theory reference tools. Small enough to fit in your notebook or gig bag, powerful enough to get you through class.
 

The
PowerWheel™ reinforces music theory concepts by laying out the musical environment of any key on a single interactive page.
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Music Theory

             
                   
 
Music Theory PowerWheel products are the most comprehensive single-page interactive music theory tools available. Fully laminated to last, they measure 9"x11.5" and easily slip into your notebook yet are powerful enough to get you through your music classes.
MusicSimple PowerWheel music theory reference tool
MusicSimple
   

The PowerWheel™ Junior - music theory tools

The PowerWheel™Junior is the simplest to use.

The PowerWheel™Junior easily references all diatonic harmony and lays out any key's entire diatonic structure by simply dialing in a key's tonic.

  • Any Key's scales (Major or Minor)
  • Any Key's chords and chord quality
  • The notes that make up each chord of any Key
  • And More!

Designed for beginning to mid-level music students, the PowerWheel™Junior is a great reference tool for music analysis and provides a solid base on which to expand music writing, playing and understanding.

Try a Flash Sample of the PowerWheel™Junior

 

 
     
 
MusicSimple PowerWheel music theory reference tool
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The PowerWheel™ Standard - music theory tools

A unique circular slide-rule for musical information based on the circle of fifths, the PowerWheel™Standard is a powerful companion that reinforces any music theory book, class, or teaching method.

The PowerWheel™Standard easily references all diatonic harmony and lays out any key's entire diatonic structure by simply dialing in a key's tonic.

  • Any Key's scales (Major or Minor)
  • Any Key's chords and chord quality
  • The notes that make up each chord of any Key
  • Any Key's Circle of Fifths
  • Easy transpositions to any other Key
  • And More!

Specifically designed for beginning to mid-level music students, the PowerWheel™Standard is an exceptional tool for music analysis and provides a solid base on which to expand music writing, playing and understanding.

Try a Flash Sample of the PowerWheel™Standard

 
     
 

The PowerWheel™ Pro - music theory tool for advanced music study

MusicSimple PowerWheel Pro music theory reference tool
MusicSimple
   

The PowerWheel™ Pro is an advanced version of the PowerWheel™ Standard. It references everything the PowerWheel™Standard does and more...

Also reference in any Key:

  • Chromatic as well as diatonic harmony
  • Chords beyond the 7th extension to include the 9th, 11th, and 13th extensions
  • Common alterations of chords based on their chord quality
  • Suspended and augmented chords
  • The Neapolitan bII chord
  • 3 versions of the augmented sixth chords
  • 32 of the most popular modes and scales
  • And More!

Try a Flash Sample of the PowerWheel™Pro

 

“Classical, Jazz, Blues, Rock... if it’s musical, the PowerWheel™ helps you understand it.”

The PowerWheel™ line of products places the rather vast spectrum of diatonic and chromatic harmony at your fingertips in a uniquely visual way.

For more information or to try an interactive flash sample, please see our Products Page

If you are an educator or music teacher, please see our Pilot Programs for special school programs and discounts.

 
                   
                   
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