De la wikipedia en inglés, corto y pego. Es interesante:
Pieces based on other works[edit]
Emerson would occasionally cover or sample other musical works in his compositions. Permission to use pieces was sometimes denied by the composer or his family; for example Gustav Holst's daughter refused to grant official permission for rock bands to perform her late father's composition Mars, the Bringer of War.[152] However, a number of composers did grant permission for their works to be used. Aaron Copland said that there was "something that attracted [him]" about ELP's version of "Fanfare for the Common Man", and so approved its use, although he said, "What they do in the middle, I'm not sure exactly how they connect that with my music[.]"[153] Alberto Ginastera, on the other hand, enthusiastically approved Emerson's electronic realisation of the fourth movement of his first piano concerto, which appeared on their album Brain Salad Surgery under the title "Toccata". Ginastera said, "You have captured the essence of my music, and no one's ever done that before."[154]
With the Nice[edit]
"America, 2nd Amendment", from West Side Story's "America", by Leonard Bernstein, credited, quoting Antonín Dvořák's Symphony No. 9, From the New World, uncredited.[14][155]
"Rondo", derived from Dave Brubeck's "Blue Rondo à la Turk", uncredited, quoting Bach, Italian Concerto third movement, uncredited.[14]
"Diary of an Empty Day", from Symphonie Espagnole by Édouard Lalo, credited.[14]
"Azrael Revisited", quoting Sergei Rachmaninoff's Prelude in C-sharp minor, credited.[14]
"Ars Longa Vita Brevis" – Bach, the third Brandenburg Concerto, Allegro, credited.[14]
"Intermezzo from the Karelia Suite" – Sibelius, credited.[14]
"Pathetique", Symphony No. 6 by Tchaikovsky, credited.[14]
"Hang on to a Dream", from "How Can We Hang On to a Dream?" by Tim Hardin, credited, quoting (during a live recording) "Summertime", from Porgy and Bess by George Gershwin, uncredited.[156]
"She Belongs to Me", by Bob Dylan, credited, quoting Bach, uncredited,[157] and fragments of the theme from The Magnificent Seven, by Elmer Bernstein, uncredited.[14]
"Country Pie", by Bob Dylan, credited, lyrics partly set to Bach, the sixth Brandenburg Concerto, credited.[14]
With ELP[edit]
"The Barbarian", based on Allegro barbaro, Sz. 49, BB 63 by Béla Bartók, uncredited on US release of Emerson Lake & Palmer (credited on the British Manticore re-pressing of the original LP, on the back cover of the LP jacket).[33]
"Knife-Edge", based on the Sinfonietta by Leoš Janáček, uncredited on US release (credited on the British Manticore re-pressing of the original LP, on the back cover of the LP jacket); middle section based on the Allemande from French Suites No. 1 in D minor, by J.S. Bach, uncredited.[33]
"The Only Way (Hymn)", incorporating (in the song's introduction and bridge) J.S. Bach's 'Organ Toccata in F and Prelude VI from Book I of the Well-Tempered Clavier', credited on Tarkus.[158]
"Are You Ready Eddy?", based on the tune of Bobby Troup's song "The Girl Can't Help It" and including a quote from the Assembly bugle call, both uncredited (on Tarkus).[159]
Pictures at an Exhibition, by Modest Mussorgsky, credited.[14]
"Blues Variation" from Pictures at an Exhibition also contains an uncredited quote of the 'head' of Bill Evans' minor blues piece "Interplay" (1:52).[160]
"Nutrocker", adapted by Kim Fowley, credited, from Tchaikovsky's "March of the Wooden Soldiers", uncredited.[14]
"Hoedown", from Rodeo by Aaron Copland, credited, quoting "Shortnin' Bread" and "Turkey in the Straw"", both traditional.[161]
"Abaddon's Bolero", quoting "The Girl I Left Behind", traditional.[162]
"Jerusalem", by C. Hubert H. Parry, credited.[163]
"Maple Leaf Rag", by Scott Joplin (in Works Volume 2), credited.[14]
"Toccata", from a piano concerto by Alberto Ginastera, endorsed by the composer, credited.[154]
"Karn Evil 9, 2nd Impression", quoting "St. Thomas", a Caribbean melody sometimes attributed to Sonny Rollins, uncredited.[164]
"Fanfare for the Common Man", by Aaron Copland, credited.[153]
Carmina Burana, by Carl Orff, quoted in an extended solo in live recordings from Poland.[165]
With Emerson, Lake & Powell, the main theme to "Touch & Go" is identical to the English folk song "Lovely Joan", better known as the counterpoint tune in Ralph Vaughan Williams' Fantasia on Greensleeves. Not credited.[166][167]
With Emerson, Lake & Powell, "Mars" is based on the equivalent movement from the suite The Planets, by Gustav Holst.[168]
"Romeo & Juliet" from the Romeo and Juliet suite by Sergei Prokofiev, credited.[168]
"Love at First Sight" intro, Étude Op. 10, No. 1, by Frédéric Chopin, uncredited.[169]