I think no alternative better than Leawo Music Recorder to record music from YouTube. Leawo Music Recorder
could well play the role of an online audio recorder, helping you easily record music from the internet and save into MP3 or WAV format as you like for multiple audio players. This online audio recorder is an easy to use but practical audio recording app that could get music off the internet for free for you. It could record online audio file from YouTube, Pandora, Last.FM, Napster, Spotify, GUBA, NPC, MySpace, etc. The other function that makes this online streaming audio recorder program top others is that it could automatically download and add song tags to recorded audio files, including song artist, song album, album artwork, song name, etc.
For Mac users, the Leawo Music Recorder for Mac
could serve you well. Check the below steps to know how to easily record audio online and get music off the internet for free.
Launch the audio recorder on your PC and you will go to the recording main interface. Click the "Audio Source"
icon on the main interface to set audio source firstly. To record online audio and record streaming audio, select "Record Computer Audio"
option. To record audio from built-in input audio like Mic, click "Record Audio Input"
For more detail, check: https://www.leawo.org/tutorial/how-to-record-audio-from-the-internet.html