The best music channel on YouTube?

In my opinion---and to my musical taste (aside from Power Pop and 60’s Garage---Hard Country, Hillbilly, Bluegrass, Americana, Singer-Songwriter, Folk, Blues, Rockabilly, 50’s Rock & Roll, etc.), my favorite YouTube channel featuring videos covering musical artists and related issues is that of Otis Gibbs, himself a singer-songwriter-performer.

If you are interested in the more cult-level artists and their accompanying musicians/band members of the past and present in the above genres, just go to YouTube and do a search for "Otis Gibbs". You will find hundreds of his videos, each very interesting and well done. Excellent production quality, too.