The Berlin radio station RBBKultur devotes 26 episodes to Claudio Abbado every Sunday from 3 to 5 p.m. by the excellent critic Kai Lührs-Kaiser.
The link to listen is
https://www.rbb-online.de/rbbkultur/livestream/
And the page dedicated to transmission :
https://www.rbb-online.de/rbbkultur/radio/programm/schema/sendungen/claudio_abbado.html