A half step (semitone) is the shortest musical distance between two adjacent keys on a piano keyboard. A whole step (whole tone) equals two half steps—skipping one key in between. Most white piano keys have a black key separating them, making the move between them a whole step (such as C to D). However, the pairs E–F and B–C are physical neighbors with no black key in between, making them natural half steps.
KEY TAKEAWAYS- Half Step (H): 1 semitone distance (e.g., C to C♯, E to F, B to C).
- Whole Step (W): 2 semitones distance (e.g., C to D, F to G, A to B).
- Major scale recipe: Whole · Whole · Half · Whole · Whole · Whole · Half.
- Natural minor recipe: Whole · Half · Whole · Whole · Half · Whole · Whole.
Select different scale recipes in the explorer to see how swapping whole and half step positions transforms the musical mood.
Open the scale explorer ↗Connecting Theory to Sound
Music theory is not an abstract set of rules—it is the vocabulary that describes what makes your favorite songs sound so resonant. Use our interactive instruments to hear each concept in real time, and return whenever you want to explore new musical keys.