wanted - lineup data

[sprawl]

>Thanks for the help obtaining tracklists.
>
>I have another file on lineups which ends thusly:
>
>Toronto         Phoenix         04-Apr-95  Tue     BR/DA/CH/BS
>St. Catherines  Hideaway        05-Apr-95  Wed     BR/DA/CH/BS
>Buffolo         Nietzsche's     06-Apr-95  Thu     BR/DA/CH/BS
>Cleveland       Agora           07-Apr-95  Fri     BR/DA/CH/BS
>Springfield     Jaxx            08-Apr-95  Sat     BR/DA/CH/BS
>New York        Limelight       09-Apr-95  Sun     BR/DA/CH/BS
>New Haven       Toad's Place    11-Apr-95  Tue     BR/DA/CH/BS
>Atlanta         Masquerade      14-Apr-95  Fri     BR/DA/CH/BS
>Madison         Barrymore Th    18-Apr-95  Tue     BR/DA/CH/BS
>Chicago         Park West       19-Apr-95  Wed     BR/DA/CH/BS
>Milwaukee       Shank Hall      20-Apr-95  Thu     BR/DA/CH/BS
>Boulder         Fox Theatre     23-Apr-95  Sun     BR/DA/CH/BS
>San Francisco   Slims           25-Apr-95  Tue     BR/DA/CH/BS
>Isle Of Man     Festival        07-Jun-95  Wed
>Isle Of Man     Festival        08-Jun-95  Thu
>Derby           MAG festival    27-Jul-95  Thu
>

BS?   Who is BS?   RT?