Some examples of sounds

<<Audio`

tri440=Show[Waveform[Square,256,2]]

Show[AmplitudeModulation[440,1,1,5]]

Show[FrequencyModulation[440,{7,70},5]]

majorChord={{1,1},{1.26,1},{1.5,1}};
Show[ListWaveform[majorChord,493.88,05]]

partialList={{1,1},{1.1,0.1},{1.2,0.9},{1.3,0.2},{1.4,0.8},{1.5,0.3},{1.6,0.7},{1.7,0.4},{1.8,0.6},{1.9,0.5}};

sequence=Table[ListWaveform[partialList,440 (2^(x/12)),0.2],{x,0,5}];
Show[sequence]