Title: Echoes (Pink Floyd song)
Content:  "Echoes" is a song by the English rock band Pink Floyd, and the sixth and final track from their 1971 album Meddle. It is 23 and a half minutes long and takes up the entire second side of the original LP. The track was composed by combining a variety of different musical themes and ideas, including instrumental passages and studio effects, resulting in a side-long piece. The music was written by the group, while Roger Waters' lyrics addressed themes of human communication and empathy, which he returned to in later work. The song was performed live regularly by Pink Floyd from 1971 to 1975, including a performance in the film Live at Pompeii (1972). It was used for the opening shows 
Title: Echochrome
Content:  The music of Echochrome was composed by Hideki Sakamoto at the Tokyo-based sound design company Noisycroak. Most songs on the game score consist of a string quartet, including two violins, a viola, and a cello. However, three tracks include operatic vocals by singer Rumiko Kitazono. These are the opening themes to the PlayStation Portable and PlayStation 3 versions of the game, plus an additional theme that is unique to the soundtrack album. Team Entertainment published the original soundtrack to Echochrome (無限回廊 オリジナルサウンドトラック) on May 21, 2008, under the catalog number KDSD-00209. The performers included Hitoshi Konno (1st violin), Nagisa Kiriyama (2nd violin), Kazuo Watanabe (viola), and Ayano Kasahara (cello). The composer had originally considered naming the game's individual tracks after philosophical terminology to match the title's abstract qualities, but later decided to use prime numbers so as not to color the songs with subjective interpretations.
Title: Echoes and Signals
Content:  Echoes and Signals (aka Echoes&Signals) is Russian instrumental band formed in 2012 in Tula. Their music combines elements from progressive rock, post-rock and experimental genres.
Title: Echoes and Signals
Content:  The band was formed in 2012 by Fedor Kivokurtsev, Alexey Zaytsev and Vladimir Pozdyshev. Echoes and Signals debut EP Comma was self-released in 2012 and re-released by NanoBox Records in 2013. In the end of 2013 Echoes&Signals second album Ouroboros was released. The album's conception is 'cycles and circulation in everything'.
Title: Echoes (1950 song)
Content:  "Echoes" is a popular song. It was written by Bennie Benjamin and George David Weiss, and published in 1950. It was first recorded in 1950 by The Ink Spots whose recording reached number 24 on the US pop chart. In 1950, Jo Stafford and Gordon MacRae also recorded the composition. That version, released by Capitol Records as catalog number 782, was backed with "Bibbidi-Bobbidi-Boo (The Magic Song)" on the B-side side. The song reached number 18 on the Billboard chart and number 13 on the Cash Box chart. Sammy Kaye with vocal refrain by The Kaydets, recorded in New York City on October 7, 1949. It was released by RCA Victor Records as catalog number 20-3595 (in US) and by EMI on the His Master's Voice label as catalog number JO 170.
Title: Echoes (Pink Floyd song)
Content: David Gilmour – vocals, electric guitar ; Richard Wright – vocals, Hammond organ, piano, Farfisa organ ; Roger Waters – bass guitar ; Nick Mason – drums, percussion According to Jean-Michel Guesdon and Phillipe Margotin:
Title: Eternal Echoes
Content:  Eternal Echoes is the name of John Barry's final solo album. It was his follow-up recording to The Beyondness of Things, an original solo album of independent material not connected to any film. The composer described the 11 pieces of Eternal Echoes as comprising "an album of sounds, of places and of objects that have always existed and always will exist. They are without beginning or end. They are infinite in our past and future." The album was inspired by the poetry of Barry's friend, John O'Donohue. Initially, the composer conceived the project as a cycle of songs based on O'Donohue's poems. But it ended up being a purely orchestral recording performed by the English Chamber Orchestra. The album also features soloists David White on saxophone and Tommy Morgan on harmonica. The critical reception was rather modest at the time of the album's release. Commercially, Eternal Echoes was not as successful as The Beyondness of Things either.
Title: Music of Charlotte
Content:  Echo is a studio album by Zhiend released on October 14, 2015 in Japan by Key Sounds Label bearing the catalog numbers KSLA-0108–0109. The album contains two discs with 12 tracks each sung by Marina. While the music on both discs is the same, the lyrics are different: one has English lyrics and the other has Japanese lyrics. The album is composed and arranged by Hikarishuyo, with lyrics written by Jun Maeda.
Title: Echoes (radio program)
Content:  Echoes is a daily two-hour music radio program hosted by John Diliberto featuring a soundscape of ambient, space, electronica, and new-age music. The program features in-depth artist interviews and intimate "living room" performances. Interview subjects have included Brian Eno, Peter Gabriel, Laurie Anderson, and Philip Glass. Live performers have included Yo-Yo Ma, Pat Metheny, Loreena McKennitt, Steve Roach, Air and many others. Echoes has produced sixteen CD collections from these and other in-studio performances. Distributed by Public Radio Exchange, Echoes is currently heard on about 80 radio stations. Echoes can also be heard on the web, with 24/7 streaming and on-demand audio available. Echoes was created in 1989 by Kimberly Haas and John Diliberto, a music journalist whose works have appeared in 
Title: Echoes (Pink Floyd song)
Content:  "Echoes" begins with a "ping" that was created as a result of an experiment very early in the Meddle sessions, produced by amplifying a grand piano played by Richard Wright, and sending the signal through a Leslie speaker and a Binson Echorec unit. After several "pings", a slide guitar played by David Gilmour gradually joins in. The verses are sung in harmony by Gilmour and Wright, and joined by a riff played by Gilmour and bassist Roger Waters in unison. This is followed by a guitar solo from Gilmour, played on a Fender Stratocaster through a Fuzz Face effects box, before repeating the previous riff. This leads into a funk-influenced jam. The middle section of the song features Waters using a slide and a Binson Echorec. Gilmour plays a high-pitched screeching noise, which was created by plugging a wah-wah pedal in back 

Question: Who was the composer of Echoes?
Answer: Roger Waters.
George Roger Waters.