how to turn a 50 minute youtube video into mp3?

1. 2017-07-05 at 9:17 AM UTC

   #1
   

   HTS-∆FAM∆-KING OF THEVOID RONALDO "THE HALF BAKED BAN" Yung Blood [deploy the alienable tit-tat-toe]
   neeeed help plz
2. 2017-07-05 at 10:22 AM UTC

   #2
   

   NARCassist gollums fat coach
   convert2mp3.net
   
   you gotta be kidding tho
   
   
   
   
   .
3. 2017-07-05 at 12:04 PM UTC

   #3
   

   -SpectraL coward [the spuriously bluish-lilac bushman]
   https://mp3toolbox.net/mp4_to_mp3