Absolutely, casually listening to Solfeggio Frequencies is possible when you retune your music. This is possible through HZP, an app that lets you retune music on the fly to one of the Solfeggio Frequencies. While you also can listen to straight tones, users might find this slightly annoying or hard to listen to for longer periods of time. When I say straight tones, I mean tuning forks or computer generated sin waves that ring out that specific frequency. These are useful when it comes to active meditation or healing sessions. Retuning music is a much more enjoyable and casual way to incorporate sound healing into your routine.