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To MAKE music, acoustic instruments were used for most purposes. The only electronic instruments were electronic organs (the Hammond organ was introduced in 1934 and competitors soon followed), electric Guitars and theremins (mostly used in movie scores).

To RECORD music, the vast majority of recordings were made using microphones, tube (valve) amplifiers, and cutting lathes that cut 78-rpm discs. These held 3 to 5 minutes of music on each side and were manufactured like cookies, pressing molten globs of plastic between stampers that held "negatives" of the original disk, with ridges matching the grooves that would be stamped into the plastic. The plastic was very stiff and did not take detailed impressions, so the sound quality was only somewhat better than a modern telephone.

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14y ago

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