Blackwell's Music Shop

I found this piece in the 'Bookseller' dated 14th November 1970: “Opened by Trumpet. THERE was a trumpet fanfare for Sir Adrian Boult when he opened Blackwell’s new music shop at 38 Holywell Street, Oxford, on Monday this week. This is a new building next door to the original premises at 39 Holywell Street, which the 15-year-old music shop has now outgrown.”