Music tools tailor tunes to help you sleep

摘要

A BABY may fall back asleep at 2 am to a gentle lullaby, but new compositions designed to help adults relax sound rather different to Rock-a-bye Baby. Boston-based start-up Sync Project uses biometrics to tailor music to your mood. Its Unwind app measures your heart beat via your smartphone's accelerometer and uses this to tweak an ambient track by UK band Marconi Union. After listening, you take a brief survey on how relaxed you feel.