Some links for you all -

https://www.carolinaeyck.com/ - Carolina Eyck’s home page https://www.youtube.com/playlistlist=PLO67K64m9F4UEiJLd_QArZ8owpBfoeIvY - How to play an octave with Carolina Eyck https://zwentzen.wordpress.com/wpcontent/uploads/2010/10/thereminmethod.pdf - Clara Rockmore’s method http://www.thereminworld.com/ https://www.patreon.com/c/carolinaeyck/membership - become a patreon of Carolina Eyck and get cool stuff ! https://www.youtube.com/@gblanctheremin - another great Thereminist.