Sudhalter grew up in a musical family: Her father Albert played the alto saxophone in the New England area with the bands of Herbie Marsh, Eddy Duchin, Bobby Hackett and others.
Richard Sudhalter, nicknamed "Dick", the oldest brother, played trumpet/cornet and wrote award-winning books on Jazz history.
She continued to study flute with private teachers in Washington DC, New York, Boston, Israel and Italy until 1978.
From the nineteen-seventies on she has been teaching piano, saxophone and flute privately, at Mannes College, and for the New York Pops Salute to Music Program.
She initiated the ‘Jazz Monday’ concerts at Athens Square Park between 1989 and 2001, along with several other local festivals in Queens, NY, where she resides.