Playlogs can be found on each program's page on CBC Listen. Click on the Search Shows link, enter the program name, and you will see a list of playlogs by broadcast date.
Here's a list of CBC Music programs and links to the show pages
Afterdark
Backstage with Ben Heppner
Canada Live
CBC Music Top 20
Centre Stage
C'est Formidable
Choral Concert
Drive
In Concert
Marvin's Room
Mornings
My Playlist
Nightstream
Randy Bachman's Vinyl Tap
Reclaimed
Saturday Afternoon at the Opera
Saturday Night Blues
Saturday Night Jazz
Shift with Tom Allen
Tempo
The Strombo Show
This is my Music
Weekend Mornings on CBC Music