Welcome, music sluts and slutinos to another edition of Manor Music Monday, today with several dollops of mystery, intrigue and wait, what? Let me explain. As you may know, there are countless jazz vocalists from the mid-to-late 1950s who are lost to time, and I'm not talking about the already-established, like Ella Fitzgerald, Billie Holiday or Peggy Lee. I'm talking about the up-and-comers who were inspired as children by those giants of jazz, and come the 1950s, were at last ready to make their own mark.  Many didn't get the chance, and others, who released one or two LPs, suddenly had the plug pulled, their dreams abruptly dashed. The cause of all this? The rise of rock n' roll, a force so sensational, so overwhelmingly popular, that it changed the music landscape overnight. And forever. Who wants to hear the new jazz vocalist, the record companies figured, when you can sign that rising rock 'n roller who's firing up all the kids at the club?   Newbie jazz...