Various implementations include audio systems for controlling audio feedback to user requests. In some particular cases, a headphone system includes at least one headphone including an acoustic transducer having a sound-radiating surface for providing an audio output; at least one microphone for receiving an audio input from a user; and a control system including a recommendation engine, the control system coupled with the at least one headphone and the at least one microphone, the recommendation engine configured to: analyze the audio input for a non-specific request from the user; and provide an audio sample to the user along with a prompt for feedback about the audio sample in response to the non-specific request.