New word: Music-cool

adj. a person or media presentation (i.e. movie, TV show, powerpoint presentation) that displays a musical knowledge and comprehension of songs and artists that are just about to "break out," especially in the cutting-edge genre of its time (i.e. grunge rock in early 90s; indie pop/rock in the late 00s); music-cool people can lay claim to "discovering" at least one group in said genre before anyone they know, and evangelizing said group to others.