French author, composer, vocalist and guitarist born on August 23, 1948 in Avignon.
Her 1970s LPs saw a progression from folk roots, via avant-garde / progressive forms to rock. The more experimental albums are Faudrait Rallumer La Lumière Dans Ce Foutu Compartiment. and La Folle (which features musicians from Clearlight). In the 1980s she adopted a straighter rock / chanson style mostly under Mama Béa's nickname.
I'd say her voice and style of singing are definitely difficult to appreciate, as it were. It's a very French type of chanson style, with passages of spoken poetry, outright wailing, hollering, etc. Also despite the description this is not so much prog as psych in musical style.
From Bebe-Robot, Les Glycines:


















