Link on Bill Palmer fb page
ffmpeg -i https://www.youtube.com/watch?v=MsIzN8YRsgU -ss "00:00:SS.00" -to "00:00:SS.00" xPASTExURLxPATHxOUTPUTxFILENAMExDOTxEXTENSIONx

ffmpeg -i xPASTExURLxINPUTx -b:a 192k output.mp3 xPASTExURLxPATHxOUTPUTxFILENAMExDOTxEXTENSIONx

youtube-dl --extract-audio --audio-format mp3 --audio-quality 0 https://www.youtube.com/watch?v=V0gwZxnpYNU