In the spring of 2017, I had recently become obsessed with collecting 45s. I had long been a fan of the pop music of the ‘50s and ‘60s, i.e. “oldies”. After collecting vintage jazz records for a while, of which many collectors believe the mono versions are the most authentic, it finally dawned on me that seeking out classic pop tunes on original mono 45 R.P.M. discs might provide an worthwhile listening experience.