Coffee chemistry

https://www.coffeechemistry.com/

Caffeine tolerance reset

http://nymag.com/scienceofus/2016/07/heres-how-to-undo-a-caffeine-tolerance.html

https://www.theguardian.com/music/2017/aug/17/they-could-destroy-the-album-how-spotify-playlists-have-changed-music-for-ever?curator=MediaREDEF

https://www.theguardian.com/music/2017/aug/17/they-could-destroy-the-album-how-spotify-playlists-have-changed-music-for-ever?curator=MediaREDEF

Spotify playlist

George cahill, ketosis research

http://ltc-ead.nutes.ufrj.br/constructore/objetos/Art%206-M%F3dulo%201.pdf

https://enki.org/2017/08/13/quitting-caffeine/

https://enki.org/2017/08/13/quitting-caffeine/

http://news.mit.edu/2017/blocking-key-enzyme-may-reverse-memory-loss-0808

http://news.mit.edu/2017/blocking-key-enzyme-may-reverse-memory-loss-0808

Book review website

https://www.kirkusreviews.com/

Steinway piano facts

http://www.steinwaypianos.com/159-facts-about-steinway-and-the-pianos-they-build

Understanding of music

http://www.understandingofmusic.com/uoms_site/uoms-files/uploads/2013/09/musiclesson.pdf

Absolute pitch

http://www.cogsci.ucsd.edu/~creel/COGS160/COGS160_files/MiyazakiAPLEARN.pdf

Despacito

https://www.spanishdict.com/guide/pasito-a-pasito-despacito-lyrics-and-meaning

Guitar practice schedule

http://theaspiringguitarist.net/guitar-practice-schedule-create/