Lesson 7

Classification of Organ Stops by Pitch

This is the second of six organ registration lessons which should be completed in order. You may begin this lesson after completing Lesson 6. Registration lessons should be studied concurrently with technique and music theory lessons, and while preparing one of the played assignments.

Learning Outcomes

  1. Interpret the pitch designation on speaking organ stops.
  2. Distinguish between octave- and unison-sounding stops.
  3. Define mutations and describe their various functions.
  4. Define mixtures and be able to employ them appropriately in either solo or chorus functions.

Reading Assignment

OrganTutor Online

In OrganTutor Online study the following lesson: “Pitches of Organ Stops.” Take notes in the “OrganTutor Organ 101 Lesson Objectives” section of the workbook. As you study, set a goal to internalize each concept thoroughly. Test your understanding by answering the Quick Review questions at the end of each OrganTutor concept and by taking the end-of-lesson tests, reviewing as needed.

The OrganTutor Workbook

As a supplemental resource, refer to the "Pitches of Organ Stops" section in the OrganTutor Workbook.