The song had been in the works since 1999, and its eerie enveloping intro is a classic Radiohead feature. “If You Say The Word” feels reminiscent of tracks on “Kid A” and “Amnesiac” like “Life In a Glasshouse” and “In Limbo.” The gloomy atmosphere, jazzy drum beat, and dreamy vocals ground the single in the sound of early 2000’s Radiohead, making it feel strongly connected to its companion albums. “If You Say The Word,” however, is the first of several unreleased or reworked songs that will feature on “Kid A Mnesia,” a forthcoming compilation album that will combine the two-decade-old albums “Kid A” and “Amnesiac” with brand-new material. The band’s members have been working on personal projects since the group’s last release in 2017, and many fans doubted the possibility of any new Radiohead content. Radiohead’s newest single “If You Say The Word” is a mellow combination of the English rock band’s past eras and a look toward their future.