Inspired by her jazz-loving parents and childhood addresses that spanned the globe, Ms. Lambert began singing professionally in coffee shops at the age of 12. Mentored by veterans of the Montreal jazz scene, including trumpeter Herbie Spanier, and influenced by the diverse vocal traditions of flamenco, fado, and jaipong, she grew up playing in professional jam sessions with visiting artists such as vocalist Jon Hendricks. She would go on to further refine her musical style studying with vocalist Jay Clayton, the legendary Cecil Taylor and others at the Banff Jazz Workshop. Geoff Chapman of the Toronto Star wrote that unadorned elegance is the keynote of Jeannette Lambert's singing and she was named one of the 500 best jazz vocalists of all time by author Scott Yanow in his book, Jazz Singers. She has performed around the world, written lyrics for music recorded by a number of other jazz vocalists, and co-founded the artist collective/record label Jazz From Rant with her brother, guitarist Reg Schwager, and her husband, drummer Michel Lambert, in 1991.
She has produced two cds of children's jazz music with her group, Bebop for Babies. She performs melodic versions of Bronte poems on Michel Lambert's cd, Unclouded Day, released by Ayler Records. She has also released her jazz versions of classic Christmas carols, Jeannettically Modified Christmas Songs.
Her jazz standards album, Born to be Blue, features a collection of her favourites. Recently Jeannette, Reg and Michel travelled to Bali, Indonesia where they performed music from Born to Blue as well as collaborating with many great Balinese musicians. She has composed a song cycle inspired by their travels in Bali as well as a series of compositions based on dream-inspired haiku. She appears on the cd by Phil May entitled Sudbury, singing in both French and English in a tribute to their hometown in Northern Ontario.