Would You Use Headphones That Play Music Based on Your Mood?

Microsoft is researching earbuds that play music based on your mood. The "Septimu" headphones contain internal measurement units (IMUs), a thermometer, and a heart rate monitor. The headphones will also detect posture, keep a health diary, and monitor exercise patterns. A University of Virginia graduate used the headphones for an app, Musical Heart, which monitors heart rate and then selects music for the listener.