 This system added sounds unexplored by generations of musicians, so new adaptations of current instruments had to be made to support the small intervals, and for this reason the instruments were reduced in the number of octaves they contained.For example, a standard piano has 88 keys that cover more than 7 octaves, and a piano with 88 keys made for 16ths of a tone would not constitute a full octave.To have the same number of octaves as a conventional piano, a piano for 16ths of a tone would need 704 keys.