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EasyPianoSheets ~ Music Theory

Learn Music Theory, Explore completely new scale systems and harmonic ideas. Pick a topic below to dive deeper.

Scales Chords Harmony Tempo Modes
CroHarmonic Scale Theory

Circle of Fiths

All major keys in circle-of-fifths order, showing their key signatures, number of accidentals, and relative minor keys.

Music Tempo and Counting Theory

Tempo & Counting

Tempo is the speed of music in beats per minute, and counting tracks how many beats fit into each measure.

CroHarmonic Scale Theory

Musical Modes

Overview of Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, and Locrian, plus harmonic & melodic variants. Derived from the major/minor family.

CroHarmonic Scale Theory

CroHarmonic Scale Theory

The CroHarmonic system: Is a new musical system derived from traditional and ancient musical scales. Unique for composing exotic and cinematic melodies & chord progressions.

Diminished Triads

Standardized Names for Chords

Investigation of diminished triad structures, their voice-leading, and how they function in expanded harmonic contexts. Useful for composers, improvisers and music teachers.

Diminished Triads

Sheetmusic & Songs

A collection of simplified classical pieces arranged for easy reading and playing. Includes famous works by Beethoven, Mozart, Bach, and traditional melodies like Greensleeves.

Created by Thomas de Haan • Standardizing Music and discovering new tools for composing and music education.