Non free use rationale Description Picture of Echoes in CoolEdit 2000, to be used as a visual aid by demonstrating the dynamics of the piece, which are addressed by the article but can be described much more effectively using this visual representation. Source Track ripped from official EMI CD using JetAudio, opened in CoolEdit 2000 and screengrabbed. Converted to PNG in Polyview. Ripped track then deleted. Article Echoes Pink Floyd song Portion 100 of source used Low resolution it is not possible to reconstruct the song from the image and therefore the impact on the rights of the copyright owner is zero. Purpose to effectively illustrate the dynamics of the work, for which nothing less than a representation of 100 of the work would suffice, and for which mere words would be inadequate. Replaceability Not replaceable by a different image as none is known to exist, and any that did would not present the same information in a substantially different manner other information This is a derivative work of the copyrighted song Echoes by Pink Floyd . It used for the educational purpose of advancing knowledge about that song. Specifically, it is a useful illustration of the dynamics in the song. Without that illustration, the article would be less clear. The image does not infringe on a substantial part of the song s copyright and will not have a negative effect on revenue from the song. Licensing Non free fair use in Echoes Pink Floyd song ... more details