Blue Note Records discography - WikipediaMain series[edit] 1500 series[edit] Blue Note made the switch to 12" albums late in 1955. The Modern Jazz Series (see the 5000 series below) continued with the following 12" LPs. Many of these were issued in both monaural versions (BLP series) and stereo versions (BST 81500 series), sometimes in electronically rechanneled stereo. In certain cases, the stereo versions of recordings from 1957 onward
