Tucked above a tree-lined block in Hell’s Kitchen, this soulful duplex co-op is on the market for the first time in nearly 40 years—formerly owned by a celebrated artist and singer, and it shows in every custom detail. Perched on the top floor of a quaint 4-unit co-op, this nearly 1,500 SF duplex (plus ~350 SF private roof deck) is a true one-of-a-kind home. Walk up just two flights to discover an...