What is the lower note of the organ's range?

The lower note of the organ's range is C2. This note represents the bottom end of standard organ keyboards and is recognized as the starting point for many organ compositions and techniques. The organ has a wider range than many other instruments, but C2 is generally considered the fundamental lowest note for the instrument, allowing composers and performers to utilize the rich, deep tones that the organ can produce.

In context, while C3, A2, and B2 are lower pitches than middle C (C4), they do not represent the lowest note on the organ. C3 is actually middle C, while A2 and B2 are higher than C2. Therefore, C2 serves as the lowest note, providing a foundation upon which the higher notes can build an expansive sound, making it a vital part of understanding the capabilities and limitations of the organ's range.