There are fifteen major keys though there are only 12 chromatic notes. That is because three keys are enharmonic. The keys move from the...

Intervals are the building block of music. If we look at the chromatic scale there are 12 possible pitches each a semitone or half-step apart. Lets say the chromatic scale starts on C a semitone or half-step away would be C# or Db. Lets take a look at the scale going up and down. C# and Db are enharmonic equivalent as they have the same pitch but are notated differently. The basis for notation depends on alteration and direction of resolution. There are 5 different qualities

There are seven major musical modes. If you start on C and work your way through, E, F, G, A, and B, they are respectively Ionian,...