How to read research papers & math notation http://blizzard.cs.uwaterloo.ca/keshav/home/Papers/data/07/p... http://press.princeton.edu/chapters/gowers/gowers_I_2.pdf http://www.math.cornell.edu/~hubbard/readingmath.pdf

Fourier transform https://betterexplained.com/articles/an-interactive-guide-to... http://jackschaedler.github.io/circles-sines-signals/ https://books.google.com/books/about/Who_is_Fourier.html?id=...

Music information retrieval http://musicinformationretrieval.com/ https://www.audiolabs-erlangen.de/fau/professor/mueller/book...