Aired (November 1, 2026): Did you know one voice can produce two musical notes at the same time? Discover the fascinating world of overtone singing and learn how singers can bring out hidden higher notes using just their voice! Watch 'iBilib' Sundays at 9:35 AM on GMA Network, hosted by Chris Tiu and Shaira Diaz. For more iBilib Highlights, click the link below: Watch the full episodes of your favorite GMA shows on the new GMA Play app. Download now on Google Play and App Store. Also available on GMANetwork.com/GMAPlay and Android TVs!
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