If you look at a record under a microscope, the high frequencies are short jagged edges... and the low frequencies are long swinging ones are deep bass sounds. When it cut it at half speed, you're getting more of those on the record.
-- Herb Alpert
   
Herb Alpert   Name:
Herb Alpert
Type:
Musician
Nationality:
American
Birth:
March 31, 1935
https://www.nutquote.com/quote/Herb_Alpert