Second in a series of three records of Library Music miniatures from composer and multi-instrumentalist Daniel O'Sullivan (Æthenor, Ulver, This Is Not This Heat, etc) following 2020's Electric Maya. For heads, the term "Library Music" in 2021 might evoke dodgy Italian gray market LPs and crate-diggers hunting for "funky breaks"-but London's venerable KPM Music is working with groundbreakers like O'Sullivan to open up new avenues for composers to experiment with. Fourth Density's fifteen tracks include several beguiling instrumental beauties, including the Ashra-like "Astral Survivor" and the drifty "Faster Than Light." Mixed in with the instrumental are almost-pop gems like the hypnotic "Orgone Attenuation" and "Head In The Belfry," both with guest vocals from Astrud Steeholder. Like the other volumes, this is in a beautiful jacket designed by O'Sullivan and Turner Prize-nominee Mark Titchner and pressed on aesthetically complimentary blue vinyl.
Release date:
September 24, 2021
Label:
Install our app to receive notifications when new upcoming releases are added.

Recommended equipment and accessories
-
HumminGuru: Ultrasonic Vinyl Record Cleaner
Advanced ultrasonic technology with customizable cleaning cycles and a large tank capacity to thoroughly remove dust, dirt, and contaminants
-
Denon DP-400
Featuring a high-precision, belt-driven mechanism and an adjustable tonearm that ensures optimal tracking and minimal resonance
-
Edifier R1280DB Powered Speakers
Combining classic design with modern Bluetooth connectivity, built-in amplification and versatile inputs, these speakers deliver rich, balanced sound.
-
Audioengine A2 Plus
Precision-engineered 2.75-inch woofers and a 0.75-inch silk dome tweeter, featuring built-in DAC and Bluetooth connectivity for seamless integration.
-
Turntables - Top Picks
A selection of reliable record players you can buy today, for every budget
Featured Upcoming Vinyl
-
Soulwax All Systems Are Lying [2xLP]
Because Music
October 17, 2025 -
Ed Sheeran Play (Amazon Exclusive; Purple)
Atlantic
September 12, 2025 -
Geese Getting Killed
Partisan Records
September 26, 2025 -
SWEET SAVAGE Bang
Earmusic
September 12, 2025 -
Bitchin Bajas Inland See
Drag City
September 26, 2025 -
Max Richter SLEEP CIRCLE [3xLP]
Deutsche Grammophon
September 5, 2025 -
Slipknot Slipknot [2xLP]
Roadrunner Records
September 5, 2025 -
Unleashed Fire Upon Your Lands
Napalm Records
August 15, 2025 -
Wavves Spun (Yellow)
Many Hats Dist
August 1, 2025 -
Pretty Bitter Pleaser (Blueberry Lemonade Splatter)
Tiny Engines
August 29, 2025 -
Whitney Small Talk
Whitney, Inc.
November 7, 2025 -
Craig David Commitment [2xLP]
Believe Recordings
August 8, 2025 -
Cave In The Sacrifice Poles
Relapse
August 15, 2025 -
The Favors The Dream
Darkroom / Interscope
September 19, 2025