[3] While attending the BRIT School, he met Matt Kwasniewski-Kelvin, Cameron Picton, and Morgan Simpson; together they went on to form Black Midi.

The group began performing live at Brixton pub The Windmill, the only venue to reply to Greep's emails requesting gigs.

[4] After signing with Rough Trade Records in 2019, the band enjoyed critical acclaim with their three studio albums, Schlagenheim, Cavalcade, and Hellfire.

[5] Following the hiatus of Black Midi, Greep began a solo career and released his debut studio album, The New Sound via Rough Trade Records on 4 October 2024.

[12] He listened to his father's record collection of progressive rock, classical music, and country and was also interested in the "whiz-bang impact" of cartoon scores.

He grew fond of the music featured in the game, in particular "Take Me Out" by Franz Ferdinand, and later received an electric guitar for his eighth birthday.

Around this time, his father would lend him CDs of Black Sabbath and Led Zeppelin from his own personal collection, as well as those of progressive rock bands such as Pink Floyd, Genesis, and King Crimson and jazz musicians such as Miles Davis.

[15] The performances had a profound effect on his musical development, bringing him experiences of improvising while playing, a practice that he has stated is lacking in the education of secular white musicians.

[16] What would become Black Midi first began when Greep met fellow guitarist Matt Kwasniewski-Kelvin at the BRIT School, which they both attended.

In order to capture the new direction of their sound, they worked with producer John "Spud" Murphy for what would become their sophomore studio album, Cavalcade.

[29] The lyricism of Cavalcade's songwriting would put greater emphasis on narratives, consisting of stories centered around characters written from third-person perspectives.

[31] The following year, Black Midi released their third studio album, Hellfire, a title Greep had originally suggested for Schlagenheim.

The New Sound also displayed, as the name would suggest, a change in musical influences explored by Greep while in Black Midi.

We can't play many styles of music to the expert level, so, in failing to sound exactly like the originals, you'll come up with something original—or you'd hope so.

Stylistically, Black Midi's songs often start out as pastiches of other styles or genres that change and evolve through improvisation and experimentation.

[24] Greep has also taken great influence from Frank Zappa and Boredoms, whose albums We're Only in It for the Money and Vision Creation Newsun respectively he has both listed as two of his all-time favourites.