Tinnitus is a sensation of sound without external stimulation and it is common on clinical .Tinnitus retraining therapy (TRT) is a recognized treatment of relieving tinnitus. Scientific researches show that some similar and unrepeatable music can be used as the sound of TRT .This paper proposed a new method of generating fractal tones based on IFS and broken chord .Applying this new method in the synthesizing could make all the notes within the scale and appeared randomly .Furthermore, the adjustability of neighboring notes avoided the tone mutation. By using this method, the tinnitus rehabilitation sound achieved a balance of predictability and randomness .Experimental results showed that it had obvious fractal characteristics and remained the fractal image features. By adding broken chords, the music turned into more coherent and mildly pleasant songs .So it had reference significance to the treatment of tinnitus.
