Every Saturday morning for as long as I can remember, BBC Radio 3 has had a programme at 9am called “Building a Library”, in which a group of experts review recordings of classical music with a view to recommending the one(s) that the listener should contemplate adding to his or her ‘library’. The implicit model is that the music comes on a disc, which made complete sense in the pre-streaming era. The fact that the channel is still running the programme suggests that lovers of classical music still buy discs, which I guess really marks them out nowadays from lovers of pop, rap, etc., most of whom probably get their music from streaming sources. In which case a ‘library’ is now a playlist, I guess.