Play with your music theory: meet the piano

The twelve pitchesin the westerntuning system

Pitches forma spiral

Are C4 and C3 the “same” note? C4 is higher in pitch, but they are both in the same pitch class.

The circle of fifths

Read clockwise to get fifths; read counterclockwise to get fourths.

There are two ways to organize the pitch classes around a circle