This is the cover of a Welsh-language music magazine called Sŵn (Noise). It ran from 1972-74. Other notable defunct Welsh-language music zines are Asbri (Vivacity) (1969-78) and Sgrech (Scream) (1978-85). All are rich sources of musical info and contain some great pictures. Sgrech for example has some fine shots of Geraint Jarman looking an absolute dead ringer for Brian May; and an extremely young Gruff Rhys balancing a cymbal on his head in a band called Machlud. Many thanks to Huw Jones for the Sŵn scan.