ENHARMONIC NOTES: Now you will probably notice that each black keys has both a sharp name and a flat name.. Enharmonic are notes with the same sound but different but different names
You can relate that to Homonyms I believe we all know what homonyms are? 😁
Half Step: Half Step is the difference in pitch or sound between any two adjacent keys on the piano.. In other words its called a semi-tone modulation
Natural Half step: Please this is a really important concept and will cause you no end of confusion if you don't understand it
Most half steps involves some kinda of accidentals e.g F# to Gmaj or C# to Db
If you look at the keyboard now imagine it, you can see that there are two places where there is no black key between two white keys yes or true?😁

If you remember our definition for half step any two adjacent keys on the piano rgt?

E - F & B - C are half steps but " without the need of any accidentals". These are called Natural half steps still a semi tone modulation but without