The difference between semi tones and whole tones on the piano
This piano lesson is part of a series called how to play piano. This lesson lesson is useful for beginners to music as it starts off showing you the difference between a whole tone and a semi tone. Basically whole tones and semi tones refers to going from the white keys to the black keys. If you only ever hit the white keys on your piano then your skipping a length. However, if there is no black key between any two white ones, then the next length in the chain of tones is the next white one. I'm probably making it sound more complicated than it really is, so I recommend watching the piano lesson below and seeing for yourself how easy it can be to understand tones.
This piano lesson also explains Intervals and shows you how to play G major scale before finishing with teaching you the song Mary had a little lamb.