Sydney-based pop singer-songwriter Gia Darcy has released her fifth single, 'Less I Know', via 2030 Records. 'Less I Know' is Gia Darcy’s most profound and personal single yet. The track features a warm acoustic guitar, rich strings and melancholic lyrics that evoke a deep nostalgia.  Gia Darcy when speaking about the single says, “Writing this song was personally nerve-wracking but liberating…