For this episode Russell goes back to the nineteen-seventies with a discussion of his list of ‘Key Albums of the Seventies’, and a look at the fascinating (and sobering) leaded-unleaded petrol wars of that decade, featuring some groovy Amoco ad soundtracks. Moving closer to the present, there’s also a review of Pearl Jam’s new album Gigatron, copious Abba love, some nerdy librarian talk about ‘shelfies’ and a necessary retraction (and plug) about the Bandcamp app. Oh no!