Starting on E, you want to go up exactly one whole step. What note do you land on?
AF, because F is the next letter above E
BF#, because E to F is only a half step, so one more half step is needed to complete a whole step
CEb, because a whole step below E is D, so a whole step above must go the other direction
DG, because you skip one white key to make a whole step
E to F is only a half step — there is no black key between them on the piano. A whole step equals two half steps, so you must go one half step further: E to F (half step) to F# (second half step). Landing on F would give you only a half step. This is the most important exception to memorize: E–F and B–C are half steps, even though they look like 'just one letter apart,' just like any other adjacent notes.
Question 2 Multiple Choice
How many half steps are there from C up to E?
ATwo, because C and E are two letter names apart
BThree, because C–D is one whole step and D–E is one whole step, totaling four half steps — wait, that's four
CFour, because C–D is a whole step (two half steps) and D–E is a whole step (two more half steps)
DThree, because there are three black keys between C and E
C to D is a whole step = 2 half steps (C → C# → D). D to E is a whole step = 2 half steps (D → D# → E). Total: 4 half steps. The answer is 4, which corresponds to option C. This illustrates why counting letter names is unreliable for measuring intervals: 'two letters apart' does not mean 'two half steps.' The acoustic distance depends on which specific notes are involved.
Question 3 True / False
On a standard piano keyboard, E to F is a half step because there is no black key between them.
TTrue
FFalse
Answer: True
E and F are adjacent keys with no black key between them, making them exactly one half step apart. The same is true of B and C. On the keyboard, a half step is always the distance from any key to the immediately adjacent key — color doesn't matter. Because E–F and B–C have no intervening black key, they are half steps rather than whole steps. This is one of the most important facts in Western pitch organization.
Question 4 True / False
Most adjacent white keys on the piano are a whole step apart.
TTrue
FFalse
Answer: False
This is the most common misconception about the piano keyboard. While most adjacent white-key pairs are a whole step apart (C–D, D–E, F–G, G–A, A–B), two pairs are only a half step apart: E–F and B–C. These pairs have no black key between them. Assuming all white-key pairs are whole steps will cause errors when constructing scales — especially when E or B is a starting point or falls in a critical position within a scale pattern.
Question 5 Short Answer
Explain why E–F and B–C are half steps while other adjacent white-key pairs like C–D and F–G are whole steps. What does this tell you about how the piano keyboard is organized?
Think about your answer, then reveal below.
Model answer: The piano keyboard maps the chromatic scale — twelve equally spaced pitches per octave — onto a layout of white and black keys. Black keys fill the gap between most adjacent white keys, providing the intermediate half step. But between E and F, and between B and C, there is no intermediate pitch — no black key was inserted. These pairs are already adjacent in the chromatic scale. The keyboard's uneven visual layout reflects the fact that the seven natural notes are not evenly spaced acoustically.
Understanding this requires distinguishing visual appearance (two white keys next to each other) from acoustic reality (how many half steps separate them). The chromatic scale has 12 equal half steps per octave; the diatonic (natural) notes span 7 of those 12, but not evenly. Two of the seven gaps between adjacent natural notes are half steps rather than whole steps. This asymmetry is why scale construction requires specifying the exact pattern of whole and half steps rather than just naming letters.