Black midi is really something special but I would keep my ears open in the whole prog rock and maths rock sector. You might like Wobbler for example.

Since you gave no preferred genres I try to give a mix of great albums one should've listened to:

• Atmosphere: When Life Gives You lemons you paint that shit gold (Hip Hop)
• Black midi: Cavalcade (Maths Rock)
• Christian Scott: Anthem (Jazz Rock)
• D'Angelo: Brown Sugar (RnB)
• Dee Dee Bridgewater: Read Earth (World/African Blues)
• Dennis Wilson: Pacific Ocean Blue (Rock with Gospel Elements)
• Jethro Tull: Songs from the Wood (Progressive Rock)
• Jezzreel: Great Jah Jah (Roots Reggae)
• Kate Bush: Hounds of Love (Progressive Pop)
• King Crimson: In The Court of the Crimson King (the best album ever made)
• Leonard Cohen: Songs of Love and Hate (Singer-Songwriter/Folk)
• Massive Attack: Protection (Trip Hop)
• Nick Cave & The Bad Seeds: Tender Prey (well, Post-Rock I guess)
• Yes: Close To The Edge (Progressive Rock)