Much of the material on "Red" has origins in improvisation. Motifs that would eventually be used for "Fallen Angel" were first played by Robert Fripp in 1972, as part of improvs performed with the quintet lineup that would record "Larks' Tongues In Aspic". These improvisations are documented as "Fallen Angel" and "Fallen Angel Hullabaloo" in the "" box set, as well as standalone releases of their respective concerts. The distinctive introduction to "One More Red Nightmare" was also deployed by John Wetton and Robert Fripp in various improvs throughout 1974, which can be heard in the "Starless (box set)" and "The Road to Red" box sets. One notable performance is titled "The Golden Walnut". Lastly, "Providence" itself was an improv, taken from the group's show on 30th June in Providence, Rhode Island. It was included in its uncut form as part of various live sets, such as "The Great Deceiver", as well as the 40th Anniversary Edition of "Red" itself.