Since you are interested in Lieder (Brahms, Schumann, Mahler), here is a list of other items that you may find interesting.
LEKEU / FAURE / BERLIOZ / MASSENET / SAINT-SAENS / CHAUSSON etc
Véronique Gens: Nuits
Véronique Gens / I Giardini
[ Alpha / CD - released 24/Apr/2020 ]
As the symbiosis between the art of the poet and that of the composer, the French mélodie became the jewel of the salons of the 'Belle Époque'. By placing a string quartet and a piano around the singer, Chausson's Chanson perpétuelle, Lekeu's...
J. S. BACH
Yo-Yo Ma (cello), Chris Thile (mandolin), Edgar Meyer (double bass)
[ Nonesuch / CD - released 20/Jul/2017 ]
"Thile and Meyer, with their backgrounds in bluegrass and American roots music, bring an appealing swing and spontaneity to the Bach…Ma draws a glorious palette of sounds from his cello, which sings and weeps and whispers" Five Stars BBC Music