Literature Review

http://www.dummymag.com/features/a-dummy-guide-to-the-definitive-metroboomin-productions
This article is about how metro boomin is so innotive by demonstrating his ability to adapt to several different artists. It also shows the extent of his collaborations. which without, he wouldn't be where he is now. It Also talks about the relationship between Metro-Boomin and Future and you can see Metro's development from his older production projects compared to his newest.


http://uk.complex.com/music/2016/10/best-metro-boomin-beats/:
This article gives a little background into Metro-Boomin's life and it shows off his versatility in terms of working with different artists.  There is also a list of his top 25 best voted track which show this trait of the producer.


http://hiphopdx.com/news/id.37925/title.noah-40-shebib-details-creating-signature-sound-with-drake:
This article tells the reader about the producer Noah '40' Shebib, more specifically how he creates his underwater sound by degrading the sample rate. There is also a video of him explaining it himself and talk about some future projects which he's working on.

https://www.gearslutz.com/board/rap-hip-hop-engineering-production/1100990-autotune-vs-melodyne.html:
This website contains and allowed me to find the information about the auto-tune travis scott uses. It is different to other sources because loads of different people can put their input into the blog and obtain lots of different information together. you can also create and account and give information o which ever topic you would like to.

https://en.wikipedia.org/wiki/Metro_Boomin:
This article goes into extensive detail into the life of the producer commonly known as Metro-Booming. it is useful because it shows his progression and how he got to where he is know and also the moves he made to get where he is. this website also gives information on all the EP's, Mixtape's, Albums and Singles that he was involved in.