for anyone interested in getting their favourite music files from you tube. Heres my method
Tools you will need to copy music files from You Tube

Videograbby

link here

http://www.videograbby.com/#id=LG_Y_K7divw

Method
1-click on you tube and type in track you are after
2-Click on picture to open
3-right click on picture and a menu comes up
4-right click on 'copy video url at current time'
5-paste on to note pad
6-go to next choice if wanted. You can do this with multiple videos.
7-when finished with choices open videograbby
8-In the white window clear this initially.
9-go to note pad and click and paste each link into window ONE at a time
10-click 'record mp3'
11-when your choice has finished downloading into your download file repeat procedure until finished
12-go to download file and edit music files you have grabbed into what ever music folder you want

Note Video grabby only converts into 160br
once you have done it a few times it gets easier.
Don't try and rush video grabby wait until file is completely in you download folder

https://www.onlinevideoconverter.com/video-converter
... is reliable and very easy. reset the mp3 to 320kbps if you like in audio, or grab video or sounds in many formats.
it's free.
Steve.

I use this (but ONLY with an ad blocker in place)
http://convert2mp3.net/en/index.php

Does various formats & unlimited for mp4 etc but mp3 has an 1hr 19min max