What is the note duration pyramid? how is it organized? what relationship does it show

What is the note duration Pyramid?The minim has half the duration of a semibreve. Two half notes occupy the same amount of time as one whole note. Two minims occupy the same amount of time as one semibreve. The quarter note is a fourth (or a quarter) of a whole note.

its b san clemente

hope i

jan tschichold, the son of a designer and sign painter