Grimes has been working on the highly anticipated follow-up to her 2012 breakthrough Visions for a while now, but she’s kept things pretty mysterious. As she’s repeated multiple times, last summer’s divisive dubstep-pop anthem “Go” was never intended to be on the album, and the one other song we have heard, “REALiTi,” came from a version of the record that’s since been completely scrapped. All we really knew, until now, was that it’d be a surprise release in October, it supposedly features a lot of “real instruments,” and it has at least one glam-rock song.

But today, in a new cover story on The FADER, Grimes teases us with some trickles of new information. She says the album will be a return to the alternative rock sounds she listened to in high school, inspired by people like Trent Reznor, Marilyn Manson, and Billy Corgan. She recorded and engineered everything on the album herself, and she taught herself to play guitar, drums, keys, ukulele, and violin. But perhaps the most interesting thing she reveals about the new record is this:

They’re not all diss tracks, but there’s a lot of diss tracks…I think all my other albums were, like, sad. And this time it’s more happy and angry. I live in my own house that I pay for. I bought all this equipment myself. I control my own life now. No one has any say over what I do or where I go or when I do it.

She’s also making up some new alter egos:

Okay, there’s Grimes, but there’s other ones too now — and they’re like a girl group. There’s Screechy Bat, who’s the metal one. There’s one that’s super vampish and sexy now — I don’t know her name yet, but she’s like the Ginger Spice.

One song on the album is called “Flesh Without Blood,” and it’s described as a guitar-heavy rocker (possibly the glam-rock song she talked about before). One song is a collaborative nu-metal track called “SCREAM” with female Taiwanese rapper Aristophanes, whom Grimes found on SoundCloud. Another track, which is about “being too scary to be objectified,” will feature verses from three female MCs. And finally, there’s a “diss track about male producers” inspired by the final scene of Alexander Pushkin’s Eugene Onegin: “It’s about a guy who acts like he knows everything and then comes back crawling on his knees, which has happened to me so many times.”

You can check out the full interview here, and it’s definitely worth a read. Grimes also discusses her personal life, sexism in the music industry, and the scrapped version of the album, of which she says she’ll “probably put it out for free at some point.” Good news for us!