Post-Tonal Theory: Base 12 Counting

The video tutorial explains the concept of pitch classes in music theory, highlighting the need for organizing them to avoid confusion. It introduces the fixed dose system, where pitch Class C is assigned the number 0, and each subsequent half step is assigned the next number up to 11. The tutorial uses a clock face analogy to illustrate how pitch classes repeat in a cycle, similar to hours on a clock. It also touches on the mathematical reasoning behind using numbers 0-11 instead of 1-12. Finally, the video previews the topic of interval classes and encourages viewers to ask questions.

What is the number assigned to pitch class C in the fixed dose system?

• 1

• 12

• 11

• 0

Why do we use numbers 0 through 11 instead of 1 through 12 for pitch classes?

• To simplify musical notation

• To match the number of notes in an octave

• Due to mathematical reasons

• Because it is easier to remember

How would you describe a chord consisting of pitch classes C, D flat, E flat, and F#?

• 1357

• 0247

• 0136

• 0123

In the analogy of pitch classes to a clock face, what is 3 hours before 1:00 o'clock?

• 12:00

• 11:00

• 10:00

• 4:00

What concept will be discussed next time, which is similar to pitch classes?

• Note classes

• Scale classes

• Interval classes

• Chord classes