Echoes and Signals is a musical project by Russian songwriter, guitarist, vocalist and record producer Fedor Kivokurtsev. The project's title refers to the 'unity of opposites' concept, which is the central category of many philosophical discourses.

EaS begins its story in 2012 as an instrumental project drawing inspiration from progressive rock and post/math rock genres. After releasing 2 conceptual EPs "Comma" and "Ouroboros" (feat. Vladimir Pozdyshev - drums; Alexey Zaytsev - bass) the first long play album called "V" (reference to the five acceptance stages) has been released in 2014(feat. Yaroslav Egorov - drums; Alexey Zaytsev - bass). The album featured the first appearance of vocals and signified the migration from pure instrumental territories. Later the band released a couple of singles with guest vocalists.

The second LP "Monodrama" was released in 2017(feat. Yaroslav Egorov - drums; Alexey Zaytsev - bass). Album title and concept were referring to psychotherapy method. Musically "Monodrama" was featuring instrumental progressive rock combined with guest vocals by Mariana Semkina in the song Lead Astray.

During live tours and performances EaS shared a stage with Pain of Salvation, Long Distance Calling, Sólstafir.

The third long play album "Mercurial"(feat. Leo Margarit - drums; Alexey Zaytsev - bass) was released in 2021 and was signifying the new era for EaS . The album's concept is using the alchemical process as a metaphor for a psychological investigation. The record is featuring vocals in every song and was created in close collaboration with musical and film producer Alexander Perfilyev.