Support me on Patreon! https://www.patreon.com/adamneely What a f***ing weird thing. There still exists magic in this world, and its called subharmonics. Undertones, anomalous low frequency vibration, and other crazy topics! Henry Cowell New Musical Resources http://zztt.org/lmc2_files/Cowell_New_Musical_Resources.pdf Harry Partch’s “Otonality and Utonality” https://en.wikipedia.org/wiki/Otonality_and_Utonality Primer on Helmholtz Motion and the physics of bowed strings http://newt.phys.unsw.edu.au/jw/Bows.html Helmholtz Motion in slo Mo https://www.youtube.com/watch?v=6JeyiM0YNo4 I know I said in the video that nobody knows what causes ALF, but it’s not entirely true. It’s been directly linked to something called Torsional vibration, which is basically how the string vibrates as it’s being twisted. It’s far too complicated for me to understand but here’s the paper. Very cool! Weird stuff. http://knutsacoustics.com/files/alf-casj.pdf Spectral Centroid (awesome name for something) https://www.researchgate.net/publication/233566597_The_Violinist%27s_Sound_Palette_Spectral_Centroid_Pitch_Flattening_and_Anomalous_Low_Frequencies?enrichId=rgreq-385ef1158a51b6595c3ae703481502bb-XXX&enrichSource=Y292ZXJQYWdlOzIzMzU2NjU5NztBUzoxMDEyMTIwNzg3Mzk0NjdAMTQwMTE0MjI0ODY4NQ%3D%3D&el=1_x_3face Spectral pitch perception http://www.utdallas.edu/~assmann/hcs6367/yost09.pdf http://www.musicandbrain.de/fileadmin/grafik/pdf/P_Schneider_M_Wengenroth_CMR_2009.pdf Background Music: http://sungazermusic.bandcamp.com Follow Me on the Internets... http://www.facebook.com/adamneely http://www.instagram.com/its_adamneely Peace, Adam