Chris Cutler has curated a series of podcasts at Radio Web MACBA, titled Probes. The series attempts to trace the effect on music of the collapse of common practice tonality and the invention of sound recording. He looks at the role of the composer, microtonal divisions based on equal temperament, field recordings from environments in a state of flux, the Latvian music scene and more.
Cutler notes that the series (which is available for download) contains a lot of music which is currently out of print, and difficult to source. Full details and podcasts can be found here, and there's full playlists too (the playlist and annotations for Probes #1 can be found here).