The context of the following conversation is Addison was unsure why Ash was dancing. Addison gave Ash a weird look.:
Addison says Ash does some strange things..
The friend responds You just realized that?.
Addison responds I was unsure of why he was dancing and I gave him a weird look..
The friend responds Did you find out why he was dancing?.
Addison responds I cannot tell because there was no music playing at the time..
The friend responds Since he hears voices, maybe he hears music as well..