An occupational hazard of vinyl

I remember listening to a singer-songwriter radio show in the '90s.  The DJ gave a thoughtful intro to the song she was about to play, saying that it was appropriate for such a rainy day.  Then, the song started.  It was immediately apparent that she was playing a record, as a contemplative singer who recorded a thoughtful song at 33 RPM was singing--at 45 RPM.  When that happens, the DJ can fade the song out and start another song.  Or, the DJ can switch the turntable speed and open the microphone to say, "Let's try this again."  A third option is to switch the turntable speed during the song without explaining what happened.  The DJ in this case went with option three, causing the singer's voice to careen from an overly caffeinated chipmunk octave to her natural alto sound.  Alas, if an announcer plays enough records on the air or in a club, that's bound to happen at least once in a career.  Obviously, turntables aren't used nearly as often these days, but certain college stations and noncommercial stations still use them part of the time.