References

   References for Independent Research entry:

• Kellerman, Andy (n.d.). "Pharrell Williams - Overview". Allmusic. Retrieved September 21, 2012 from http://www.allmusic.com/artist/pharrell-williams-mn0000275757 
• Reid, Shaheem (September 28, 2001). Neptunes' Pharrell Williams Rethinks R&B. "MTV". Retrieved on September 21, 2012 from http://www.mtv.com/news/articles/1449404/pharrell-williams-rb-revolt.jhtml

   References for Electronic Music entry: 

• Witter, Simon (Spring 2006). Kraftwerk Interviews. Dummy (magazine). Retrieved September 13, 2012 from http://www.technopop-archive.com/interview_123.php
• Harrington, Richard (May 27, 2005). "These Days, Kraftwerk is Packing Light". Washington Post pg. WE08. Retrieved September 13, 2012 from http://www.washingtonpost.com/wp-dyn/content/article/2005/05/26/AR2005052600677.html   

   
    References for Electronic Innovation entry:

• Sonja Diesterhöft (2003), "Meyer-Eppler und der Vocoder" (in German). Retrieved September 13, 2012 from http://web.archive.org/web/20080305021509/http://www.kgw.tu-berlin.de/statisch/Studio/Meyer-Eppler/Meyer-Eppler.html
• DSP Innovations Inc. Retrieved September 13, 2012 from http://dspini.com/dspini_vocoders.htm

   
    References for Velvet Underground's Velvet Underground & Nico entry:

• Tyrangiel, Josh (November 2, 2006). "The Velvet Underground and Nico - The ALL-TIME 100 Albums". Time. Retrieved September 8, 2012 from http://entertainment.time.com/2006/11/02/the-all-time-100-albums/#the-velvet-underground-and-nico
• Jones, Chris (2002-11-20). "The Velvet Underground The Velvet Undergroud and Nico (Deluxe Edition) Review". BBC Music. Retrieved September 8, 2012 from http://www.bbc.co.uk/music/reviews/fq4h

   
    References for Marvin Gaye's What's Going On entry:

• Henderson, Eric (n.d.). Review: What's Going On. Slant Magazine. Retrieved September 8, 2012 from http://www.slantmagazine.com/music/review/marvin-gaye-whats-going-on/365
•  Bush, John (August 2, 2011). "What's Going On [40th Anniversary Edition] - Marvin Gaye". Allmusic. Rovi Corporation. Retrieved September 8, 2012 from http://www.allmusic.com/album/whats-going-on-40th-anniversary-edition-mw0000651085

    References for The Beach Boys' Pet Sounds entry:

• Starostin, G. (n.d.). The Beach Boys.The Tower of Babel. Retrieved September 2, 2012, from http://starling.rinet.ru/music/beach.htm#pet
• Carlin, P. (2009, 13 August). The Bob Edwards Show. Podcast retrieved from 2009 XM Satellite Radio via iTunes.

     References for The Beatles' Revolver entry:

• RX » Piece » Everything Was Right: The Beatles’ Revolver . (n.d.). Public Radio Exchange . Retrieved September 2, 2012, from http://www.prx.org/pieces/15368-everything-was-right-the-beatles-revolver
• Stone Music. (n.d.). 500 Greatest Albums of All Time: The Beatles, ‘Revolver’ | Rolling Stone. Rolling Stone | Music News, Politics, Reviews, Photos, Videos, Interviews and More. Retrieved September 2, 2012, from http://www.rollingstone.com/music/lists/500-greatest-albums-of-all-time-20120531/the-beatles-revolver-19691231