In music, the term note sometimes refers to a note in a specific octave (like "C♯4") and sometimes to the set of all notes with the same name, regardless of octave (like "C♯"). Which terms should one use when trying to distinguish these two concepts?
Note that the terms pitch and pitch class are not applicable here, since C♯ and D♭ are in the same pitch class, but they are different notes in both of the interpretations that I described above.