Chord books and music lessons still sell, but for visual learners, the best option is probably the video tutorial. … of the top 20 podcasts offered by iTunes, six are iVideosongs tutorials. The second most popular podcast on iTunes is iVideosongs’ “Beginning Guitar 101.”
The wave of interest in guitar tutorials comes amid renewed interest in the instrument, spurred at least in part by wildly popular games like Guitar Hero and Rock Band. IVideosongs’ chart success comes only a few weeks after the company made its tutorials available through Apple’s service.
You have to go down to #24 on the list to a music podcast (NPR’s “All Songs Considered”) oriented towards passive listening rather than playing.