RR:

No such prerequisite. The candidates were sent in on home-made tapes, MiniDiscs, .mp3 files by e-mail, home-made CDs as well as commercial CDs. Only thing I drew the line at was singing to me over the phone, just on account of the sound quality, and wax cylinders on account I can't find that old Edison player I thought I had balanced up among the garage ceiling beams.    :>)

A