EMIs Classical LP catalogue was vast and included, 

EMI CSD Records featured mainly new recordings of lesser known performers or repertoire. The CSD series was later replaced with the EMI HQS Series which continued to bring more new artists to the record buying public

EMI ESD Greensleeve label, also mainly new recordings but with a few selected reissues which feature on the TAS List

EMI SXLP Records were mainly reissues of the ASD 3 Digit series.