On The Sensations Of Tone-Helmholtz

wiki:
“In 1863 Helmholtz published Die Lehre von den Tonempfindungen als physiologische Grundlage für die Theorie der Musik (On the Sensations of Tone as a Physiological Basis for the Theory of Music), once again demonstrating his interest in the physics of perception. This book influenced musicologists into the twentieth century.”


NoiseGuide-Information, Pictures and Reviews of Musical Equipment

“NoiseGuide contains information, pictures and reviews of musical equipment that might appeal to musicians who don’t play common styles of music… like noise! We have over 2000 items on this site for your viewing pleasure and are constantly updating the site with new information and adding new features so visit us often! You can start by browsing equipment information by category or manufacturer below or you may want to try searching for equipment.”

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Lots of Great Information

Project C-90 Ultimate Audio Tape Guide

Super guide to all or most cassettes ever manufactured: http://www.c-90.org/catalogue/tapes

Great Site

“Philips – the Dutch electronics company, invented and released the first audio compact-cassette in 1962. Previous to this time, the only way of recording voices or music was by reel-to-reel tape recorders. The cassette system came about as a way of increasing portability and not involving manual threading of sensitive and brittle tape. It needed too to be much more portable than vinyl records. Philips used high-quality 4mm polyester tape produced by BASF. Recording and playback was at a speed of 4,75cm/second. The following year, sales began in the US by the Norelco Carry-Corder dictation machine that used the new cassette tape. In the early years consumer demands for blank tape was totally unanticipated by Philips as the format was never really designed for personal home recording.”