it is also possible to play some music with not too much effort. look at the table.




here standard frequencies are given, first row has for octave 1 , second for 2 and so on. you can see the frequencies in any row in certain column is double of its previos row. that means every note that is one octave apart (i.e. 'C' in octave 1( and 'C' in octave 2) has just double of the frequency of the previous octave.

you can built a LUT for TIMER DIVIDERS FOR 12 notes and calculate frequencies for all notes for six octaves.

abhishek