:I'm not sure what "this" refers to. Do you want to know whether sound waves have interference? That kind of interference definitly happens. It's even been put to commercial use recently in the noise cancelling headphones. They have a microphone that samples the sound that is going to hit your ears and they generate a sound that "mirrors" it so that when the outside sound is compressing the air the generated sound is rarefying the sound.  It's like one little man was pushing on your eardrum with a stick and another little man was opposing the motion of the stick just enough that it can't move. 

 Piano tuners use sound interference to tune pianos. They hit two keys on the piano and count the "beats" (destructive interferences) per unit of time to judge the difference in frequency between the two notes.   

 Two sounds that are close in frequency can produce interference effects that are unpleasant to the human ear. Here is a sample: 
 http://www.wfu.edu/~moran/discord.html 

 In musicology the idea of harmony is very important. Sounds that go together harmoniously are ones that are related by a few simple ratios. Actually, there are different ways of coming up with more-or-less harmonious combinations.  Some frequencies go together badly, and one bad result is the production of what is called a "wolf frequency," interference that produces very high intermittent "yelps" as though a wolf's high howl were coming in through the window somehow.