For example, he highlights Taylor Swift’s use of single note melodies. Something that you can not necessarily write on a piano or acoustic guitar.
Why Radiohead’s complexity is not only part of their sound, but who they are.
John Mayer’s ability to use space and silence, basically less is more.
Muse (or Matt Bellamy’s ability) to balance between different parts of the sound and songs so that everything is able to fit together.