Compared to the rest of the series, Day of Radiance features very little in the way of electronics. Laraaji uses a variety of acoustic stringed instruments such as a hammered dulcimer and 36-stringed open-tuned zither.
The first three tracks are variations on a theme named "The Dance", and are delivered in a fast, hypnotic, Gamelan-like, rhythmic pace on a hammered dulcimer. Eno's input is not only in the role of producer; he also adds many creative touches to the natural instrument-sounds. In particular, he "layers" the tracks, after which he applies various effects to the point at which the dulcimer almost sounds like other instruments.
These processes are particularly noticeable on the last of the "Dance" pieces. The simple practice of slowing the tape down creates resonances that are deep, and distorted in places.
The final two tracks ("Meditation 1 & 2") are different; more in keeping with the "ambient" style featured on the rest of the series. These are slow, meandering beatless compositions performed on the zither, with the dulcimer adding the odd highlight. Eno's tactic in these two pieces is mainly to electronically highlight the zither's naturally long decay-rate, creating a highly ethereal sound.