. _:vb50844986 _:vb50844987 . _:vb50409575 . . _:vb50844040 _:vb50844041 . _:vb50409573 . _:vb50844041 _:vb50844042 . _:vb50844042 . _:vb50844984 _:vb50844985 . . _:vb50844039 . _:vb50844985 _:vb50844986 . _:vb50409573 . "Relates a performance or a recording to the engineer involved" . _:vb50844039 . _:vb50844040 . . "stable" . _:vb50844041 . _:vb50844040 . . _:vb50844984 . _:vb50844042 . . _:vb50844987 . _:vb50409572 . _:vb50409572 . _:vb50844986 . _:vb50844985 . _:vb50409573 _:vb50409572 . _:vb50409573 . _:vb50409572 _:vb50409574 . . _:vb50844984 . _:vb50409574 . "2" . _:vb50844042 . _:vb50844039 _:vb50844040 . _:vb50409574 . _:vb50844987 . _:vb50844039 . _:vb50409575 . _:vb50409574 _:vb50409575 . _:vb50844986 . _:vb50844984 . _:vb50844041 . _:vb50844985 . . _:vb50844987 . _:vb50409575 .