Alma Mahler was an intriguing and sometimes disturbing character. Her career as a composer was apparently cut short when she married. Gustav Mahler insisted - and posterity suffered.
Alma died in 1964. Read about Alma Mahler in this Guardian blog post (written in 2010).
Her 5 Lieder are on IMSLP, though they may not yet be out of copyright in the UK. Here in the Whittaker Library, we have editions of her diaries and memoires, and a CD including some of her music. We're trying to source sheet music, so our performers can actually sing her songs.