A major update to Twitter's #Music app adds music discovery features called 'Charts', and along with it come genres to help users find music relevant to them. But apparently #Music users don't care about jazz, classical or world music.
Obviously missing are jazz, classical and world music. A case could also be made for Americana (or is that country and/or folk), new age (world?) or a number of other genres that do not fall under the 10 in #music.
What genres do you think Twitter's #Music is missing?