Two-octave location chart

Octave C D E F G A B
Around middle C C4 D4 E4 F4 G4 A4 B4
The next octave C5 D5 E5 F5 G5 A5 B5

Between C and D lies C♯/D♭; between D and E lies D♯/E♭. There is no black key between E and F or between B and C. Between F/G, G/A, A/B lie F♯/G♭, G♯/A♭ and A♯/B♭ respectively. Enharmonic spellings refer to the same physical piano key in ordinary equal temperament but different letter functions in notation.

Two octaves of labeled piano keys C4 through B5, with five black keys in each octave
Original two-octave keyboard map. C repeats after each B.

Original eight-step find-the-note test

  1. Find middle C (C4) using the two-black-key landmark.
  2. Find C5 directly an octave higher.
  3. Find D4, one white key right of C4.
  4. Find F4, the white key left of a three-black-key group.
  5. Find A4, two white steps right of F4.
  6. Find B4, one white key before C5.
  7. Find F♯4, the black key between F4 and G4.
  8. Find B♭4, the black key between A4 and B4.
Answer check

Steps 1–6 are C4, C5, D4, F4, A4, B4. Step 7 is F♯4/G♭4; step 8 is A♯4/B♭4. Recheck octaves by looking for the next C, not by counting black keys alone.

A five-minute habit

Point to a named note first, then play it; reverse the sequence by playing a note and saying its name. Practise around two different sets of black keys. If you are about to start major/minor chords, finding roots independently will save more time than rushing into more chord shapes.

Sources and scope

Source and topic references checked 28 October 2026. The linked articles/course outlines substantiate the indicated general principles and coverage, not our precise original exercise, performance effectiveness, or a first-hand review. Music studies here were independently composed for this site; external musician review before publishing is still outstanding.